self2010 - shared storage for the rest of us
DESCRIPTION
discussion on shared storage for the rest of usTRANSCRIPT
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shared storage for the rest of usscott bossSoutheast Linuxfest 2010june 11-13, 2010
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SURPRISE!A raffle for gifts from O’Reilly Publishing will be at the end
of the presentation.
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target audiencesmall to medium sized businessesfamilies / homesworkgroupsgeeks*
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why do we want shared storage?
to share files between computers / peopleshared storage for clustered serversit’s coolwhy not?to make our customers happy.
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optionslocal storageSANNAScloud storage
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local disksinternal disks (IDE/SATA)
~$50-$150 eachlimited number on a host.
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external drivesusb* (external) disks
~$90-$250 eachlimited number on a host.
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“thumb” drivesvery portablesmall amounts of storageeasy to move files aroundnot shared storage
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local storage summaryPROslow costs
CONscan’t share the disks between the hosts*limited number of internal disks.usb can be slow if you have lots of usb devices.limited protection.
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optionslocal storageSANNAScloud storage
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HBAsHBA (host bus adapter)
$900-$1500 eachHBA is a specialized SCSI controller
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san switches & cablingsan fibre switches
$10k-$250k eachfibre fiber cables
$90-$200 each
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san storage arrayhigh speedhighly redundantexpensive per GB of storage
$40k-$millions
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san summaryPROshigh speedhighly redundantmultiple hosts can share the same disks.
CONslarge costs / GBadditional dedicated hardware is required to use it.
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optionslocal storageSANNAScloud storage
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NAS protocolsNFSCIFSAFP (AFPoverTCP)iSCSIAoE
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NFSnative with all UN*Xes, Linux and MacOSXWindows can do it with UNIX Services for NT package.second best performance of the bunch.
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CIFSnative with all Windows and MacOSXUN*X, Linux can do it with Samba package.worst performance of the bunch.
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AFP (AFPoverTCP)native with MacOSXlinux can do it with Netatalk package.best performance of the bunch.
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iSCSIblock storage (like internal/SAN storage)can have any filesystem.needs an iSCSI initiator.slower speeds that local storage.
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AoEblock storage (like internal/SAN storage)can have any filesystem.although over the network, does not use TCP/IP.can not be routed.least amount of support of the NAS protocols.
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FCoEblock storage (like internal/SAN storage)can have any filesystem.works with Lossless Ethernet.must be used with a CNA.not finalized standard yet.
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hardware/software options
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NAS appliance (low end)many low end players
$350+basic NAS featuresweb admin interface
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NAS appliance (high end)EMC and NetApp are the big players
$100k-$500kmany advanced features
replicationdedupbackup connections
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homemade NAS servermost configurableany O/S can be used within reason.can be a virtual machinecan use an existing host.
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homemade NAS appliancepreconfigured O/Salready tweaked to be a NAS appliancecan be a virtual machinecan use an existing hardware.
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time to install FreeNAS
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basic configurationshostnamedisk management networkservices
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make a sharecreate a mountpointCIFS shareNFS shareAFP share
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using the shareWindows via CIFSLinux vis NFSMacOSX via AFP
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using the shareWindows via CIFSLinux vis NFSMacOSX via AFP
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using the shareWindows via CIFSLinux vis NFSMacOSX via AFP
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NAS summaryPROslow cost no special hardware/software on clients
CONsspeednot a block device (NFS, CIFS, AFP)
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optionslocal storageSANNAScloud storage
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cloud storagenetwork basedlow costaccessible via standard protocols like HTTP, FTP, NFS & REST APIs.good for backups
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cloud storage (public)Amazon S3Rackspace Cloud SpaceMozy (EMC)*
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cloud storage (public II)Jungle DiskCarboniteElephantDrive
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cloud storage (private)ParaScaleMezeoAtmos (EMC)
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cloud storage summaryPROslow cost no special hardware/software on clientslocally and maybe geographically redundant.
CONsspeednot a block devicelimited use cases.
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what is the best storage solution for you?
it will all depend...
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</presentation>
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Time for the Rafflehave three (3) “ebooks” to give away from O’Reilly Publishing.
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questions?
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