vvr 3.5 release guide

Upload: aix-admin

Post on 06-Apr-2018

226 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/3/2019 Vvr 3.5 Release Guide

    1/22

  • 8/3/2019 Vvr 3.5 Release Guide

    2/22

    Disclaimer

    The inform ation contained in this pu blication is subject to chan ge w ithout n otice.VERITAS Software Corpor ation m akes no w arran ty of any kind w ith regard to thisman ual, includ ing, but not limited to, the imp lied w arran ties of merchan tability andtness for a particular purpose. VERITAS Software Corporation shall not be liable forerrors contained herein or for incidental or consequential damages in connection with thefurnishing, performan ce, or use of this manu al.

    Copyright

    Copyright 1998-2002 VERITAS Software Corporation. All rights reserved. VERITAS,VERITAS Softw are, th e VERITAS logo, VERITAS Volu me Replicator, an d all oth erVERITAS prod uct nam es and slogans are trad emark s or registered trad emar ks of VERITAS Software Corporation in the USA and/ or other countries. Other product namesmen tioned herein may be trad emark s or registered trad emark s of their respectivecompanies.

    July 2002.

    VERITAS Softw are Corp orat ion350 Ellis StreetMou nta in View, CA 94043USAPhone 6505278000Fax 6505272908www.veritas.com

  • 8/3/2019 Vvr 3.5 Release Guide

    3/22

    iii

    Contents

    Int roduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

    Get tin g H elp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

    VERITAS Packa ges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

    Disp layin g Docum entat ion O nlin e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

    Prin ting Document ation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

    For th e Latest Product Inform ation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

    N ew Featu res in This Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

    Chan ges in This Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

    Recommended Patches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

    Com patib ility Consid era tion s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

    Obtain ing a License Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

    Up grad ing and Installing Volume Replicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

    Software Fixes an d Enhancements in VVR 3.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

    Software Lim itat ions and Problem s in VVR 3.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

    Con figura tion Worksh eet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

  • 8/3/2019 Vvr 3.5 Release Guide

    4/22

    iv VERITA S Volume Replicator Release Notes

  • 8/3/2019 Vvr 3.5 Release Guide

    5/22

    1

    VERITAS Volume Replicator Release Notes

    IntroductionVERITAS Volum e Replicator (VVR) is a licensed product and an add-on feature to theVERITAS Volum e Manager (VxVM). This d ocum ent p rovid es release inform ation forVERITAS Volum e Replicator 3.5 on Solaris and contains add itional inform ation to theRelease Notes for VxVM. Note th at Volum e Replicator Ad min istrative Services (VR-AS)has been integrated w ith VVR, that is, VR-AS is no longer a separate p ackage.

    Review this entire document before install ing VVR. For additional information about thisrelease, see section For the Latest Produ ct Informa tion on page 5 .

    VERITAS Volume Replicator has been tested on Solaris 2.6, Solaris 7 (32-bit and 64-bit),Solaris 8 (32-bit an d 64-bit), and Solaris 9 (32-bit an d 64-bit) opera ting system s. Thisrelease of VVR is not su pp orted on Solaris 2.5.1 and Solaris x86.

  • 8/3/2019 Vvr 3.5 Release Guide

    6/22

    Getting Help

    2 VERITA S Volume Replicator Release Notes

    Getting Help

    For assistance with any of th e VERITAS prod ucts, contact VERITAS Technical Support:U.S. and Cana d ian Customers: 1-800-342-0652

    Intern ationa l: +1-650-527-8555

    Email: sup port@verita s.com

    For license information:

    Phone: 1-925-931-2464Ema il: license@ver itas.com

    Fax: 1-925-931-2487

    For software updates:

    Email: swup date@verita s.com

    For information on pu rchasing VERITAS prod ucts:Phone: 1-800-258-UN IX (1-800-258-8649) or 1-650-527-8000

    Ema il: vx-sales@ver itas.com

    For ad d itional inform ation a bou t VERITAS and VERITAS prod ucts, visit the Web site at:

    www.veritas.com.

    For late-breaking news about this release, see section For the Latest Produ ctInformation on page 5 . For ad ditional technical sup port information, such as technicalnotes, alerts, and hard w are comp atibility lists, visit th e Know ledge Base on the TechnicalSup port Web site at:

    www.support.veritas.com

  • 8/3/2019 Vvr 3.5 Release Guide

    7/22

    VERITAS Volume Replicator Release Notes 3

    VERITAS Packages

    VERITAS Packages

    The VERITAS CD labeled VERITAS Storage Solut ions for SolarisDisc 2 contains thefollowing packages:

    VRTSvlic VERITAS Licensing Utilities .

    VRTSvxvm VERITAS Volum e Man ager and Volum e Replicator softw are.

    VRTSweb VERITAS Web GUI Com mon Web Server pa ckage.

    VRTSvrw VERITAS Volume Replicator Web Console package.

    VRTSvrdoc Online copies of VERITAS Volum e Replicator gu ides.

    VRTSvmdoc Online cop ies of VERITAS Volum e Man ager gu ides.

    VRTSvmman Volum e Replicator and Volum e Manager man ual p ages.

    VRTSob VERITAS Enter pr ise Adm inistrator Service (required )

    VRTSobgui VERITAS Enterprise Administrator (required)

    VRTSvmpro VERITAS Virtu al Disk Man agem ent Services Provider (required )VRTSfspro VERITAS File System Provid er (requ ired, even if you are n ot insta llingthe VERITAS File System software)

    Displaying Documentation Online

    You can nd the VERITAS Volum e Replicator d ocumen tation set u nd er th efoundation_suite/docs d irectory on the VERITAS CD labeled V ERITAS S torageSolutions for SolarisDisc 2 . You can also install the VVR d ocum enta tion set by installingth e VRTSvrdoc package located on Disc 2 und er the foundation_suite/pkgsdirectory.

    The VERITAS Volume Replicator Release Notes (this docum ent) is available online in th efoundation_suite/release_notes directory. Because product release notes are notinstalled by any p ackages, VERITAS recommen ds th at you copy them to the/opt/VRTS/doc d irectory so th at th ey are available for futu re reference.

    For a lis t of the VERITAS Volume Manager documents provided with this release, see theVERITAS Volume Manager Release Notes . This produ ct includ es online docum entation inAd obe Portable Document Format (PDF).

  • 8/3/2019 Vvr 3.5 Release Guide

    8/22

    Printing Docum entation

    4 VERITA S Volume Replicator Release Notes

    VERITAS Volume Repli cator Documentation Set

    VERITAS Volume Replicator Release Notes 3.5 (this document)

    VERITAS Volume Replicator Administrators Guide 3.5

    VERITAS Volume Replicator Conguration N otes 3.5

    VERITAS Volume Replicator Web Console Administrators Guide

    VERITAS Volume Manager Documentation Set

    Refer to the Volume Manager Release Notes for a lis t of the Volume Manager documents thataccomp any this release of Volum e Man ager.

    To view PDF documents , use the Adobe Acrobat Reader. You can use Acrobat Reader as astand -alone ap plication, or as a plu g-in to your w eb brow ser. How ever, VERITASSoftware assum es no resp onsibility for the correct installation or use of Acrobat Reader.For more information on th e latest versions of Acrobat Reader, or for help w ithinstallation p roblems, visit th e Ad obe Web site at:

    www.adobe.comUnformat ted m anu al pages related to th e VERITAS Volum e Manager a nd Volum eReplicator are provided in the VRTSvmman package on the CD-ROM. If you have installedth e VRTSvmman package, the man ual pages can be found in the /opt/VRTS/mandirectory. If you add that directory to your MANPATH environment variable, you can viewthese manual pages with the man (1) comm and .

    Printing DocumentationUse the print op tions in you r Acrobat Reader view er to print one or m ore pages.

  • 8/3/2019 Vvr 3.5 Release Guide

    9/22

    VERITAS Volume Replicator Release Notes 5

    For the Latest Prod uct Information

    For the Latest Product Information

    There may be imp ortant information abou t this release that is available from VERITAStechnical sup port. To view this information:

    1. Go to www.support.veritas.com .

    2. Click Knowledge Base Search .

    3. Select Volum e Replicator in the Search Prod uct eld, an d then enter late breaking

    information in th e Search Phrase eld.

    4. Click Search Now .

    This will provide the latest VVR 3.5 produ ct inform ation.

  • 8/3/2019 Vvr 3.5 Release Guide

    10/22

    New Features in This Release

    6 VERITA S Volume Replicator Release Notes

    New Features in This Release

    This release of VERITAS Volum e Replicator includes the follow ing featu res:x Firewall Sup port

    N ow you can congure VVR to replicate in a rew all environm ent. For moreinformation, see the VERITAS Volume Replicator Conguration N otes .

    x Sup port for Layered SRL

    In the ear lier releases of VVR, the SRL could not be congu red as a stripe-mirror

    volume. In this release ofVVR, the SRL can be a s tr iped-mirror volume. If you want toconvert an existing m irror-stripe SRL, use th e following comm and :

    # vxassist -g diskgroup convert srl layout=stripe-mirror

    x Integration of VERITAS Volum e Replicator Ad ministrat ive Services With VxVM andVVR

    The Volume Replicator Administrative Services (VR-AS) package has been mergedw ith th e VERITAS Volum e Man ager p ackage. This p rovides simp lied installation of VVR and avoids compatibility issues betw een VVR and VR-AS.

    x Simplied Upgrade Procedure

    This release of VVR includ es scripts to simplify the u pgra de procedu re. Forinstructions, see the V ERITAS Volume Replicator Administrators Guide .

    x Volum e Rep licator Web Console (VRW)

    VRW is the Web-based GUI for VVR. For details, see the Volume Replicator Web Console Administrators Guide an d Volume Replicator Web Console Release Notes .

    x New Tunables

    Two n ew tu nables have been included in this release: vol_dcm_replay_size , andvol_nm_hb_timeout . Refer to theVERITA S Volume Replicator Conguration Notes for information abou t these tunables.

    x Simplied Framework for Using IBC messaging With Off-host Processing

    Earlier, using IBC messaging for off-host processing required execution of multiplecomma nd s on mu ltiple hosts. N ow, VVR provides the vradmin ibc command,w hich simp lies this task and enables you to dene and execute scripts to autom atethe p rocedu re.

    x Ofine Da ta Verication

    The vradmin syncrvg com m an d a nd th e vradmin syncvol commands have been

    enhan ced to verify wh ether the Primar y and Secondary d ata is iden tical. This da taverication can on ly be d one w hile app lication is inactive.

  • 8/3/2019 Vvr 3.5 Release Guide

    11/22

    VERITAS Volume Replicator Release Notes 7

    New Features in This Release

    x New Mode of SRL Protection autodcm

    By d efault, SRL protection is set to autodcm ; if the SRL is abou t to overow, VVR

    switches autom atically to dcm logging mod e and w rites continu e. Previously, writeswere throt tled u ntil either th e RLINK d isconnected or u ntil 20MB or 5% of the SRL,wh ichever is lower, wa s free.

    x Consolidated View of Replication Statu s

    In the earlier releases of VVR, you w ere required to ru n m ultiple comma nd s onmu ltiple hosts to determ ine replication status. Now, the new vradmin repstatuscomm and provid es a consolidated view of the replication status.

    x New VVR Command s

    In addit ion to the above enhancements, VVR provides new commands to perform thefollowing tasks:

    To change the rep lication netw ork setting vradmin changeip

    To remov e a Prima ry from its RDS vradmin delpri

    To replay a DCM th at is active because of an SRL overow orfailback logging, that is, to incremen tally synchronize th eSecondary

    vradmin resync

    To change rep lication settings includ ing m ode of rep lication,SRL protection, and latency protection.

    vradmin set

    To d isplay th e VVR and VxVM mem ory p ool statistics. vxmemstat

    To prematurely terminate the receive an d regrecvoperation s before the IBC message ar rives on th e Secondar y.

    vxibc stoprecv

    To disp lay the n ames of the RLINKs that are associated withthe specied RVG.

    vxrvg getrlinks

    To display th e names of the data v olum es that are associatedwith the sp ecied RVG.

    vxrvg getdatavols

    To d isplay ap plication statistics for t he sp ecied RVG vxrvg stats

  • 8/3/2019 Vvr 3.5 Release Guide

    12/22

    Chang es in This Release

    8 VERITA S Volume Replicator Release Notes

    Changes in This Releasex The tun able param eters for VVR have been relocated from the /etc/system le to

    the les /kernel/drv/vxio.conf for the vxio dr iver, and/kernel/drv/vxdmp.conf for the vxdmp driver.

    x The default value of the tun able voliomem_maxpool_sz has been changed from4MBto either 128MBor 5% of the main memory, whichever is lower. The value of th istun able has been ad justed to suit large systems. For m ore inform ation, see theVERITA S Volume Replicator Conguration Notes .

    Recommended PatchesThe following section contains p atch information required for prop er u se of VVR. Patchinformation is determ ined at th e time of produ ct release. For the latest information,contact Sun Microsystems. Refer to VERITAS Volume Manager Release Notes 3.5 for theSolaris patch requ irements.

    VVR requires the following Solaris patches in a dd ition to the ones listed in theVERITAS Volume Manager Release Notes . The following list gives the m inimu m revisionlevels for the requ ired pa tches:

    Solaris 2.6: 105541-05, 106532-03

    Solaris 7: 108263-06

    Solaris 8: 108981-03, 108806-02

    Solaris 9: None

  • 8/3/2019 Vvr 3.5 Release Guide

    13/22

    VERITAS Volume Replicator Release Notes 9

    Compatibility Considerations

    Compatibility ConsiderationsThis release of VVR is available for the Solaris 2.6, Solaris 7, Solaris 8, and Solaris 9operating systems. Solaris 8 and Solaris 9 includes a new version of Internet Protocol (IP),IPv6. VVR is not sup ported with IPv6. All nodes in a VVR environmen t m ust u se IPv4.

    You can replicate between n odes ru nn ing the 32-bit versions and the 64-bit versions of these operating systems, that is, you can mix 32-bit and 64-bit versions. VVR has beentested to w ork w ith the host op erating interchangeably between 32-bit and 64-bitenvironments.

    VVR 3.5 is not interop erable w ith p rior releases of VVR. All systems in a VVRenvironm ent m ust h ave VVR 3.5 installed.

    N ote tha t this release of VVR does not include VERITAS Volum e Mana ger StorageAd ministrator for VVR (VMSA-VVR). Prior versions of VMSA will not w ork w ithVVR 3.5.

    VERITAS Enterp rise Ad ministrator (VEA) does not includ e functionality to ad ministerVVR. To ad minister VVR usin g a GUI, use VERITAS Volum e Replicator Web Con sole

    (VRW).VVR 3.5 has been tested with VERITAS Cluster Server 2.0 and VERITAS Cluster Server3.5. Use VERITAS Cluster Server Enterp rise Agent for VVR version 3.5 with VVR 3.5.

    Obtaining a License Key

    Before installing VVR, obtain a license key for VERITAS Volum e Replicator. N ote thateven if you have already obtained a VERITAS Volume Manager license key, you mustobtain a sepa rate license key for VVR. For details, see the section abou t licenseinformation in the VERITAS Volume Manager Installation Guide .

    Upgrading and Installing Volume ReplicatorRefer to Chap ter 3, Installing VERITAS Volum e Replicator in theVERITAS Volume Replicator Administrators Guide .

  • 8/3/2019 Vvr 3.5 Release Guide

    14/22

    Software Fixes and Enhan cements in VVR 3.5

    10 VERITA S Volume Replicator Release Notes

    Software Fixes and Enhancements in VVR 3.5Note that Volum e Replicator Ad ministrative Services (VR-AS) has been integrated w ithVVR, that is, it is no longer a separate package. The following table includ es the softwarexes and enh ancements in VVR 3.5, which includ es VR-AS.

    IncidentNumber

    Description

    47554 RLINK detach was a llowed even if da ta vo lumes were open , the SRL had

    pen ding u pd ates, or the DCM was not em pty. Now, the operation failsw ith an error m essage. If you still mu st d etach the RLINK, use th e forceoption ( -f ) with the vxrlink detach comm and. A w arning will beprinted indicating that the Secondary n eeds to be comp letelysynchronized.

    56015 In the ear lie r releases of VVR, the SRL could not be congured as astripe-mirror volume. Now, the SRL can be a striped-mirror volume. If youwant to convert an existing mirror-s tripe SRL, use the following command:

    # vxassist -g dg_name convert srl layout=stripe-mirror

    58918 When the vradmin syncvol comm and w as terminated, thesynchronization process continued throu gh comp letion. This problem hasbeen xed.

    60840 The d efau lt valu e for the tu nable voliomem_maxpool_sz has beenincreased to a ccomm oda te larger systems with more real m emory. Formore informa tion, see the VERITAS Volume Replicator Conguration N otes .

    68786 The vradmin resumerep comm and w ould not resume the pausedSecondary RLINK. This p roblem ha s been xed .

    71386 If a Secon dary RVG h as m ultip le RLIN Ks an d all the RLIN Ks are d etached ,th e vradmin -N takeover comma nd will fail.

    72696 If the RVG was d isabled , the vxrlink updates command printed thefollowing message, w hich is not self-explanatory:

    vxvm:vxrlink: ERROR Rvg upid ioctl failed 6

    This has been xed. Now, the vxrlink updates comm and p rints thefollowing message:

    The updates command cannot be run when the RVG rvg is in adisabled state.

    72972 On a d isk grou p version th at is low er than 90, vxprint -l on anassociated RLIN K wou ld alw ays pr ints the p rotocol as TCP/ IP. Thisoccurred even if the UDP/ IP was congured. This problem has been xed.

  • 8/3/2019 Vvr 3.5 Release Guide

    15/22

    VERITAS Volume Replicator Release Notes 11

    Softwa re Fixes and Enhan cements in VVR 3.5

    74723 When running a vradmin command that requires a user response ,such asvradmin stoprep , if the user d id not respond within a few minu tes a ft er

    the comm and was issued , the comm and wou ld terminate with errormessages similar to the following:

    TAG_C 2001/08/08 16:28:20 IpmHandle:recv peer exitederrno=131vradmind stopped running - Exiting

    The comm and failed because the connection to vradmind had timed out.H owever, the second error m essage was incorrect because vradmind w as

    s till running even after the command terminated. Now the command doesnot terminate and the error messages do not app ear.

    76477 The vxrvg stop rvg_name comm and w ould work even w hen the datavolumes were open. Because the command caused all subsequent I/ Os tothe data volume to fail, the app lication with the d ata volume open wou ldsee the I/ O failures. This problem has been xed.

    81134 Killing the vrnotify command while it is running resulted in vradminddu mp ing core. This problem h as been xed.

    81535 Some congura tion er ro r messages wou ld not get clea red in the output of th e vradmin -l printrvg command after the errors were corrected. Thisproblem has been xed.

    81737 The vradmin takeover comm and wou ld take a long time to comp lete.This problem has been xed.

    82941 While an au toma tic synchron izat ion to a Secondary was in p rogress,running the vradmin migrate comm and to migrate the Primary role tothat Secondary wou ld cause the vradmind daemon to core dum p.

    84166 The outpu t of the vradmin -l printrvg command would not shownetw ork-disconnected error in th e Cong Errors block in some cases. Thisproblem has been xed.

    84729 VVR n ow p rovid es ad d ition al n otication s for variou s ev en ts. Even ts su chas a chan ge in replication mod e from synchronou s-> asynchronous an dasynchronou s->synchronou s, RVG state tran sitions, notication for nod econnect or d isconnect are logged in syslog and available as trace events.

    85995 N ow VVR fails the resyncfrom rep lica op tion of the vxassist snapbackcomm and for the data volum es if the RLINKs are attached. On theSecond ary, VVR fails the resyncfromreplica op tion u nless the RLINKs arein the FAIL state, that is, VVR allows you to recover the Seconda ry d atavolum es. For details, see "Using Snapback With resyncfromreplica Option"in the VERITAS Volume Replicator Adminstrators Guide .

  • 8/3/2019 Vvr 3.5 Release Guide

    16/22

    Software Fixes and Enhan cements in VVR 3.5

    12 VERITA S Volume Replicator Release Notes

    87221 In the ear lie r release, a wait ing IBC rece ive operat ion could not betermina ted. Now, VVR provides the vxibc stoprecv command to

    termina te a w aiting IBC receive operation.87917 After a failed vradmin addsec command, the displayed RDS information

    could be incorrect. This problem has been xed.

    88037 On recovery, VVR warns if a condit ion wi ll d isa llow replica tion tocontinu e. If for an y reason the RLINK cann ot rep licate after a recovery, amessage stating so is displayed on th e console.

    88855 The vradmin addsec comma nd d id not perform a security check similar

    to the one per fo rmed in the vradmin syncvol command before adding anew Secondary to an RDS. VVR now perform s the security check in thevradmin addsec command.

    88983 The vradmin resizevol comm and did n ot require the -f option toshrink volum es. Now VVR requires the -f option to the vradminresizevol comma nd t o shrink volumes in an RDS.

    89363 The vradmin makesec comm and should not be allowed on a failed

    Primary w hich was taken over by its Secondary w ith failback loggingenabled. VVR now contains this check.

    89428 At a customer sit e, t he SRL had become cor rup ted bu t the RLINK wouldnot d etach. The following m essage was displayed on the console:

    WARNING: vxvm:vxio: rvg rvg_name , SRL srl_name :Inconsistent log - detaching all RLINKs

    Now, VVR detaches the RLINKs. However, sufcient information was not

    available to determ ine w hy th e SRL became inconsistent.89625 If an IBC message was pend ing for an RLINK, you could not pause tha t

    RLINK. This has been xed .

    Also, if you received an IBC m essage on the Second ary an d thecorrespon ding ap plication nam e was not registered, the message wasdiscarded . VVR now w aits for 10 minu tes for the ap plication to beregistered.

    91044 The vradmin syncrvg comm and had performance issues over a highlatency WAN . This problem has been xed.

    90154 The vradmin createpri comm and wou ld fail if the data volum es andSRL were n ot in the d isk group rootdg and the -g diskgroup optionwas n ot specied in the createpri comma nd . This problem has beenxed.

    91302 The vradmin addsec command would not s ta rt the new Secondary RVG.

    VVR now contains this change.

  • 8/3/2019 Vvr 3.5 Release Guide

    17/22

    VERITAS Volume Replicator Release Notes 13

    Softwa re Fixes and Enhan cements in VVR 3.5

    91786 The vradmin migrate comm and wou ld not stop the old Primary RVG.This has been xed.

    92414 The vrnotify comm and wou ld not hand le argum ents properly. Thecomm and wou ld core dum ps if no arguments were specied after the -goption. This problem h as been xed.

    93597 While a vradmin comm and was run ning, pressing CTRL +C twice wou ldresult in vradmind dumping core. This problem has been xed.

    94032 VVR now su pp orts u p to 46 ch eckp oin ts.

    95246 Fixed the p rob lem that caused pan ic dur ing readback processing andresulted in corru pting the SRL. This could have caused loss of data on theSecondary requiring a full resynchronization.

    97270 The vxrlink stats comm and shows negative stream errors.

    95306 A failed vradmin takeover comm and could p ut the Second ary in awrong state that caused all vradmin comm ands that were subsequentlyrun on th is RDS to fail. This problem ha s been xed.

    98019 The vradmin createpri , vradmin addsec , and vradmin addvolcomm ands now remove the DRLs from d ata volumes and ad d DCMs tothe data volumes by default.

    98704 The vradmin delsec comma nd wou ld fail if the nam e of the SRL on theSecondary RVG was different from the name of the SRL on the Primary.This problem has been xed.

    100375 If th e RLIN K d iscon nects or th e or ig in al Pr im ar y reboots w h ile th e or ig in alPrimary recovers after a takeover of the Primary role and the original

    Primary is being resynchronized u sing the new Prim ary, da ta loss mayoccur thus requiring a complete resynchronization of the original Primary.This problem has been xed.

  • 8/3/2019 Vvr 3.5 Release Guide

    18/22

    Software Limitations and Problems in VVR 3.5

    14 VERITA S Volume Replicator Release Notes

    Software Limitations and Problems in VVR 3.5

    IncidentNumber

    Description

    34581 A d isk group cannot be impor ted a s shared if it con ta ins VVR object s.Attemp ting to do so will leave the disks mar ked as shared an d th ereforesubsequ ent non -shared imp orts w ill also fail. You can en able subsequentimports by doing a vxdisk clearimport on all the disks in the disk group.

    46153 If a number of vradmin commands a re star ted in background a t the sametime, some of them m ight fail.

    50275 The vradmin printrvg comm and does not display an error message toindicate an incorrect congu ration w hen th e local_host an dremote_host attributes contain the nam es of hosts that are not in theRDS.

    52850 Solaris 8 an d Solaris 9 in clu d e a n ew v ersion of In tern et Protocol (IP), IPv6.VVR does not sup port IPv6.

    55586 VxFS com m an d s m ay execu te ver y slow ly an d ap p ea r to be hu n g w h enthe following conditions exist:

    - The RLIN K is in synchronou s mod e

    - The network has a low bandw idth

    - VxFS has a very large cache

    If you en counter this problem, contact Customer Supp ort for help.

    55695 If the total size o f the RVG name and the remote host names exceed 26characters, the d efault RLINK nam es created by the vradmin addseccomma nd are trun cated. This may resu lt in a conict with other RLINKnames and cause an error.

    To avoid this error, use the prlink an d srlink attributes with th eaddsec command.

    62037 If you crea te a volume with a DCM and want to conver t it t o be pa rt o f alayered volum e by issuing the vxedit set layered=on volume comma nd , the following error message displays:

    Unexpected kernel error in configuration update

    Do not u se this comm and for volum es to be associated w ith an RVG.

    94274 The vxrlink updates command may display tha t the Secondary is a fewup dat es behind th an it is in reality. The nu mber of up da tes is less than th enu mber of concurrent ap plication w rites.

  • 8/3/2019 Vvr 3.5 Release Guide

    19/22

    VERITAS Volume Replicator Release Notes 15

    Softwar e Limitations and Problems in VVR 3.5

    94339 Running the vradmin addsec command from a system running VVR 3.5to add a Secondary th at is running an earlier version than VVR 3.5 results

    in incorrect congur ation information on th e Secondary host. To x theproblem, restart vradmind on the Second ary host.

    97821 If a volu m e is a ssocia ted w ith an RDS for w hich au tom aticsynchronizat ion is in progress to one of its Secondary hosts, VVR does notw arn the u ser that the new volu me w ill not be synchronized. Synchronizethe volu me before associating it w ith the RDS.

    99025 The vxrlink stats comm and may d isplay an incorrect num ber of stream errors after an RLINK d isconnects.

    100962 The vxrlink comma nd u sage message has a typogr aph ical mistake. Thepresented option [-timestamp_freq] should be[-t timestamp_freq] .

    102187 If you change the IP address of a hos t but do not change the host name,vradmind ma y not w ork correctly because it still uses the p revious IPad dress to comm un icate to other h osts in the RDS. To x the problem,restart vradmind .

    102598 In an environment tha t conta ins shared disk groups and a VVR license ,vradmind core dump s ifi t is s tarted before the slave completes joining thecluster. Restart vradmind for the vradmin commands to work. To restartvradmind , run /etc/init.d/vras-vradmind.sh start .

    103326 If there is a pending IBC opera tion when the SRL overows, make surethat the Secondary is unfrozen before initiat ing replay of the DCM. Failureto d o so could result in loss of da ta on th e Secondary.

    103127 Synchroniz ing two or more Secondary hosts simultaneously using theaut omatic synchronization feature can result in incomp letesynchronization of the d ata on t he Secondary ma king it un usable. If it isnecessary to synchronize tw o or more Second ary hosts u sing theaut omatic synchronization feature, synchronize each Secondaryseparately.

    N one The vxprint -e pattern command: Selecting RVG and RLINK records

    using search expressions is not currently supp orted.None VVR does not suppor t Volume Manager RAID5 volumes a s pa rt o f RVGs.

    Hard ware RAID5 is supp orted.

    None If a d isk group contain ing VVR ob ject s is impor ted on two nodes, a s we llas the problems documented for VxVM objects, the SRL is corrupted and afull resynchronization of the Second ary is required .

    N on e It is n ot recom m en d ed t o h av e rep lica ted v olu m es in th e root d isk grou p

    (rootdg ).

  • 8/3/2019 Vvr 3.5 Release Guide

    20/22

    Configuration Worksheet

    16 VERITA S Volume Replicator Release Notes

    Conguration WorksheetThe congu ration w orksheet helps you plan th e layout of a Replicated Da ta Set andprep ares you to set up a VVR congu ration. This worksheet ap pears in theVERITAS Volume Replicator Administrators Guide also. The worksheet h as been provid edhere to enable you to easily make copies. Use one worksheet for each RVG on each hos t of the RDS, that is, one Primar y and as man y Secondaries as required.

    N on e VVR d oes n ot su p p or t D isk Grou p Sp lit an d Join . Th is m ean s t ha t youcannot u se Disk Group Split and Join on d ata volum es in an RVG.

    How ever, you can take snap shots of da ta volum es and u se DGSJ on thesnapshots.

    N one Do not u se the layered ag attribu te for a rep licated volu me. A failu re w illoccur if you try to set the layered ag on wh en the volu me is in an RVG.

    None For a Rep lica ted Data Set (RDS) with mult ip le Seconda ries, thevradmin migrate comm and does not au tomatically recongure anyad ditional Second aries as Secondaries of the n ew Primary. If required ,recongu re the ad ditional Secondaries as Secondaries of the new Primaryusing the VVR comm and -line interface.

    N one When ad ding a Second ary to the RDS, the vradmin addsec commandcannot be entered from th e host being add ed. If the RDS contains thePrimary on ly, the comm and mu st be entered on the Primary.

  • 8/3/2019 Vvr 3.5 Release Guide

    21/22

    VERITAS Volume Replicator Release Notes 17

    Configuration Worksheet

    Conguration Worksheet

    Note Specifying the disks for a volum e is optional.

    Primary/Secondary (choose one):

    Hostnam e: Aliases: License Key:

    IP Addresses:

    Disk Group : Disk Group Version:

    RVG:

    (If this is the Prim ary nod e, repeat the RLINK informat ion for each Second ary nod e in theconguration.)

    RLINK:

    Remote Host: Remote DG:

    Remote RLINK:

    Synchronous (off/ override/ fail):

    Latencyprot (off/ override/ fail):

    Srlprot (autodcm/ override/ fail/ dcm/ off):

    SRlog:

    Volu me: Plex: Disk: Size:

    Data Volumes:

    Volume: Plex: Disk: Size: DCM (Y/ N):

    Volume: Plex: Disk: Size: DCM (Y/ N):

    Volume: Plex: Disk: Size: DCM (Y/ N):

    Volume: Plex: Disk: Size: DCM (Y/ N):

    (Repeat th e Data Volum es: informat ion for each Data Volum e in the congu ration.)

  • 8/3/2019 Vvr 3.5 Release Guide

    22/22

    Configuration Worksheet

    18 VERITA S Volume Replicator Release Notes