cern - european laboratory for particle physics desktop forum - june 30, 1999 plans for nice...
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Desktop Forum - June 30, 1999
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Plans for NICE
Frédéric Hemmer
Desktop Forum - June 30, 1999
Frédéric Hemmer CERN-IT/DIS 2C
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Outline
Servers evolution Windows desktop evolution
Desktop Forum - June 30, 1999
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Server: motivations
Stability Flexibility
Meet individual divisions/experiments expectations and needs
Serviceability & Scalability Meeting conflicting requirements (e.g. interventions) Accommodate for different needs (e.g. disk space, 3rd
party products) Reduce diversity
Simplicity (easier to understand problems) Less effort
Desktop Forum - June 30, 1999
Frédéric Hemmer CERN-IT/DIS 5C
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Servers Issues Stability Old hardware
Mixed Ppro@200, PII@300, 256/512 MB, but consistent Performance problems ?
Complains about slow access (B 112, 197, 73) Need more analysis
Global organization is division centric Historical Does not allow easily to be experiment centric Changes affect too many people at the same time
Disk space policy Home directories “Project” space (divisional servers)
Lack of widespread knowledge of NetWare
Desktop Forum - June 30, 1999
Frédéric Hemmer CERN-IT/DIS 6C
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Recent server instabilities
NetWare expects the task id field in the NCB to be non zero
Some applications does not respect this (not identified, maybe nwrdr)
TSKZERFX.NLM installed mid-may Servers stable since patch introduction
Solution not identified correctly initially Difficult to develop mixed vendors solutions Server failures affected too many people
simultaneously
Desktop Forum - June 30, 1999
Frédéric Hemmer CERN-IT/DIS 7C
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Groups
A “Group” here is a collection of people sharing : the same business cycles (e.g. LHCB
experiment, administration) the same files (e.g. Survey photos) the same third party server tools (e.g.
GDPM for SL/ST) Special needs (e.g. ISOLDE controls)
Desktop Forum - June 30, 1999
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Servers restructuration (1) Go to a “group” structure Map physical to logical structure For example
SRV_EST\Users\FredSRV_EST\Survey\DataSRV_EST\Survey\Archive\PhotosSRV_EST\P32\…
SRV_LHCB\Users\JamesSRV_LHCB\Controls\…SRV_LHCB\P32\…
Isolation from global server failures
Installed software can be under “group” control
Local structure under “group” control
Allows for easier local administration delegation
But need for a “move user” facility
Decentralization possible (e.g. PS, Isolde)
Division centric
Experiment centric
}
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Frédéric Hemmer CERN-IT/DIS 9C
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Server restructuration (2)
hardware rejuvenation (group) ISP style of rack-mounted
servers External disk shelves Ease of operation Scalability RAID 5 Resilience Ease of operation
SRV_EST
Disks
SRV_LHCB
Disks
Disks
Spare
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.
Desktop Forum - June 30, 1999
Frédéric Hemmer CERN-IT/DIS 1
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Server OS - Options
Options Do nothing NW 4.11 -> Client32 NW 4.11 -> NW 5.0 NW 4.11 -> NT 4.0 NW 4.11 -> Windows
2000 Server
ProblemsNo IP, 8.3, accentsUI, depl., Home, NT, IP
OK? Expertise, migrationNT client, quotas, BUToo early
EffortZeroHighHigh
Medium ?Huge
Desktop Forum - June 30, 1999
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Server OS Preferences Mainly for Manpower consideration
NetWare 4.11 -> NT 4.0 -> Windows 2000 Server-> Windows 2000 Server We have to support NT anyway Solves a number of problems
IP only, long file names, accents, 3rd party apps running as a service, …
Limited number of NetWare experts Introduces a number of problems ?
AppleTalk, NFS, quotas, ACL Security
Clear migration path to Windows 2000
Desktop Forum - June 30, 1999
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NT server : impact
Need to deploy NT client on each W95 Affect roughly 1/3 of the W95 installed base Users will have to type their password twice
the first time Uses 360 KB of disk space
Need to discuss structure and medium term needs (e.g. disk) with each division
Need to migrate users
Desktop Forum - June 30, 1999
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NT client installed baseDivision
ASDSUEP
ESTFIIT
LHCPEPSSLSPLSTTHTIS
Total
Not Installed81129823511739025554105025
742
Installed397654182201602476129713939192629
2072
Desktop Forum - June 30, 1999
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Windows 2000 Server strategy
Involve users from day 1 Develop desktop independently from server
Prototype Windows 2000 server gradually as of now Take into account a HEP-wide structure (HepNT) Independent servers for different functions Allows for alternatives (e.g. Kerberos) Allows for component based introduction Basis for a managed local apps support (roaming user)
Establish Windows 2000 working group Detailed plan available this summer
Desktop Forum - June 30, 1999
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Potential benefits
“Group” independence Structure mapped to the organization Failures isolated Better serviceability/scalability Resources more easily mapped to individual requests
One Server OS – leading vendor Reduce diversity Management tools easier to develop 3rd party tools less subject to problems
Windows 2000 Server technologies Clear statement of direction Individual needs early taken into account
Desktop Forum - June 30, 1999
Frédéric Hemmer CERN-IT/DIS 1
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motivations
Evolving the platform in order to Meet divisions and experiments expectations and
needs (hardware, software, configurations, etc...) Follow the market
While Minimizing the changes Reducing diversity Being flexible with different needs Dealing with decreasing effort available
Desktop Forum - June 30, 1999
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Windows desktop today
Windows 95 Windows NT Most supported applications are
remote Local NICE Mirror for unconnected
Portables
Desktop Forum - June 30, 1999
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Windows desktop short term needs
Windows 95 At least Windows 95 Year 2000 software
update needed (summer/autumn) Windows NT
SP4 (Y2K) is being applied … SP5 (Y2K) needs to be applied
(summer/autumn)
Desktop Forum - June 30, 1999
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Windows 95 problems
Y2K (examples) Date Tab in Find Files
(e.g. 03/20/2003 03/20/C3) Dates in File Manager Date in cmd. int. not valid
for 00->79 Date/Time picker Date in Control panel Xcopy /d msvrct40.dll between
April 1->8, 2001
Others Large disk (also BIOS
issue) Multicast (NDIS.VXD) USB (Scanners,
Cameras, etc…) Some apps would
not install (e.g. AutoCad …)
Desktop Forum - June 30, 1999
Frédéric Hemmer CERN-IT/DIS 2
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Possible options for Windows 95
Options Do nothing Windows 95 SP1 Windows 95
OSR2 Windows 98 Windows NT Windows 2000
Professional
ProblemsUSB, disk, appsUSB, disk, appsAll OK ? USB ?Y2K, W98 SEUSB, EDH etc.EDH etc.
Effort neededNoneMedium¹HighHighMediumHigh
¹ ¹ Partly applied, some registry settings incorrect
Desktop Forum - June 30, 1999
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s Windows desktop
PreferencesMainly dictated by manpower available Skip Windows 98 Freeze Windows 95 after Y2K SP + few fixes Propose move to NT for large disk Provide missing apps on NT (Diane, etc…) Prototype Windows 2000 (desktop) - Target MS release + 1-2
months ( EOY)
NT Issues Some applications missing on NT (EDH, BHT, HRT ?, but
anyway won’t pass Dec. 1999) USB Change user perception of NT “slowness”
Desktop Forum - June 30, 1999
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Desktop local applications Major effort
Issue is how to manage the installed apps Mgmt Programs would need to be redeveloped Home directories access may look slow
This seems to be really solved with Windows 2000 Server technologies (IntelliMirror, SMS 2.0) Develop local apps with Windows 2000 Server
Allow for monitored local installs initiated by the user Home directories are cached in W2K
Desktop Forum - June 30, 1999
Frédéric Hemmer CERN-IT/DIS 2
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Windows desktop : impact
Some hardware may not run Windows 2000 Professional
16 bit/DOS applications Some ISA boards not supported Change of User interface (active
desktop)
Desktop Forum - June 30, 1999
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Potential benefits
Clear evolution path (W95/WNT -> W2K) Reduced support matrix
For application providers For service providers
Plug & Play, USB, Large disks Real OS Can be done early
But not forcing migration immediately Allows for legacy application support Training (if needed) can be staged over time
Desktop Forum - June 30, 1999
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Summary Go to IP only ASAP
NT client on W95 for non {EP,IT,PS}|{New PC’s} NetWare -> NT servers
Rejuvenate and restructure Home/Div/Apps servers Skip Window 98, focus on Windows 2000
Offer Windows 2000 Professional ASAP Offer NT alternative for large disks With local apps managed by IntelliMirror/SMS later
Prototype a Windows 2000 service architecture Taking account of a HEP wide structure Allowing for shared sub-services (e.g. Kerberos) Allowing for early participation of divisions/experiments
Unified architecture with one PC Windows desktop platform in the medium term