BXadmin:SAM-QFS Testing

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testing setup

/dev/dsk/c1t1d0 = LUN 13 in esxi host group on ds4200, 1TB

hostname is fs7, 64-bit, 2vCPU, 1GB RAM, RDM over 4GFC with NPIV, solaris 10u8

SUNWsamfsr = 5.1.4,REV=5.10.2010.04.05

SUNWsamfsu = 5.1.4,REV=5.10.2010.04.05

notes/commands

commands

  • Create filesystem: sammkfs <fs>
  • fs info: samfsinfo <fs>
  • sam-fsd Check mcf, defaults.conf, diskvols.conf file for correctness
  • samd config Initialize environment and apply changes to mcf, etc.

equipment types (mcf)

  • ms = fs with archiving, data + metadata on same device. only accepts md types
  • ma = fs with archiving, data and metadata on separate devices,
  • md = striped or RR using DAU for storing data
  • mm = metadata device. can specify multiple. stored RR if there are multiple by default
  • mr = striped or RR device for storing data, uses SAU
  • gxxx = stripe groups, 0..127

allocation schemes

http://wikis.sun.com/display/SAMQFSDocs51/File+System+Design+Basics#FileSystemDesignBasics-DualandSingleAllocationSchemes

  • md : small = 4KB, large = DAU = 64KB, can be 16, 32, or 64
  • mm : small = 4KB, large = 16KB

files

/etc/opt/SUNWsamfs/mcf

http://wikis.sun.com/display/SAMQFSDocs51/About+the+Master+Configuration+File 

## /etc/opt/SUNWsamfs/mcf
#
# Equipment             Eq      Eq    Family   Device   Additional
# Identifier            Ord     Type    Set     State    Parameters
#-----------            ---     ----   ------   ------   ----------
samfs1                                  10              ms              samfs1  on
/dev/dsk/c1t1d0s2               11              md              samfs1  on

/etc/vfstab

samfs1  -   /samfs1 samfs   -   yes -

/etc/opt/SUNWsamfs/archiver.cmd

http://wikis.sun.com/display/SAMQFSDocs51/Configuring+the+Archiver

Archive sets to set AFS namei special files to release_n status: 

no_release_special . -name AFSIDat/.+?/.+?/special/.* -release n
    1 60m

no_release_dotvol . -name \.vol$ -release n
    1 60m

no_release_direntry . -name AFSIDat/.+?/.+?/.+?/.+?/[^+02468ACEGIKMOQSUWYacegikmoqsuwy].+ -release n
    1 60m

no_release_lock . -name Lock.* -release n
    1 60m

no_release_dotfiles . -name ^\.vol.* -release n
    1 60m

Disk VSN recycling can only be done by archive set. See sam-recycler(1M). Where vicepa.1 is defined by vicepa.1 dk -pool test_pool, 

params
vicepa.1 -archmax 21474836480
vicepa.1 -unarchage access
vicepa.1 -sort path
vicepa.1 -recycle_mingain 10
vicepa.1 -recycle_minobs 10

sam-recycler should be run by cron. You can specify family_set or archive_set as options to recycle by family/archive set at different intervals.

Maximum tar file size: 

archmax = dk 10737418240

VSN Pools: 

vsnpools
test_pool dk MD1K-BIG-LZJB-SAMFS1
endvsnpools

Archive set to VSN assignment: 

vsns
allsets.1 dk -pool test_pool
vicepa.1 dk -pool test_pool
no_release_special.1 dk -pool test_pool
no_release_dotvol.1 dk -pool test_pool
no_release_direntry.1 dk -pool test_pool
no_release_lock.1 dk -pool test_pool
no_release_dotfiles.1 dk -pool test_pool
endvsns

/etc/opt/SUNWsamfs/releaser.cmd

Specifies directives to sam-releaser, such as how to determine what files to release, age, various weighting metrics. See releaser.cmd(4). 

logfile = /var/log/samfs/releaser.log
rearch_no_release
min_residence_age = 1800

To apply per-fs, set fs = <filesystem>. fs-specific directives override global directives.

/etc/opt/SUNWsamfs/diskvols.conf

Assignes VSNs to disk volumes. 

MD1K-BIG-LZJB-SAMFS1    /nfs/s3.persephone.bx.psu.edu/md1k-big-lzjb/samfs1

References

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