GPFS: Administration and Programming Reference - IRA Home

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General Parallel File System Administration and Programming Reference Version 3.1 �� SA23-2221-00
Page 1: General Parallel File System Admini
Page 5 and 6: Contents Tables . . . . . . . . . .
Page 7 and 8: mmchconfig Command . . . . . . . .
Page 9 and 10: gpfsDataShipStart_t Structure . . .
Page 11 and 12: Tables 1. Typographic conventions .
Page 13 and 14: About this book This book explains
Page 15 and 16: Summary of changes The following se
Page 17 and 18: GPFS Linux installations require a
Page 19 and 20: - Migration instructions - Configur
Page 21 and 22: Chapter 1. Performing GPFS administ
Page 23 and 24: Chapter 2. Managing your GPFS clust
Page 25 and 26: Adding nodes to a GPFS cluster You
Page 27 and 28: v Change the primary or secondary G
Page 29 and 30: Table 2. Configuration attributes o
Page 31 and 32: The output shows the device name of
Page 33 and 34: Chapter 3. Managing file systems Se
Page 35 and 36: mmumount fs1 Unmounting a file syst
Page 37 and 38: Checking "fs1" Checking inodes Chec
Page 39 and 40: The system displays information sim
Page 41 and 42: GPFS: 6027-552 Scan completed succe
Page 43 and 44: Reducing file system fragmentation
Page 45 and 46: 1. Create a snapshot using the mmcr
Page 47 and 48: Chapter 4. Managing disks With file
Page 49 and 50: Deleting disks from a file system B
Page 51 and 52: 40 % complete on Fri Feb 3 16:18:36
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If more than one disk in the file s
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mmmount fs1 -o useNSDserver=always
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Chapter 5. Managing GPFS quotas The
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eplication set to a value of two, t
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The system displays information sim
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1. To restore the user quota file f
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Chapter 6. Managing GPFS access con
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#owner:guest #group:usr user::rwxc
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changed by using the mmputacl or mm
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e performed when the ACL is read by
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1. Create and mount the GPFS file s
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You may also choose to restrict the
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Chapter 7. Communicating file acces
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Chapter 8. GPFS commands Table 4 su
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Table 4. GPFS commands (continued)
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dataAndMetadata Indicates that the
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Restriping fs1 ... Thu Feb 16 13:58
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Options NONE Exit status 3. AdminNo
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mmapplypolicy Command Name mmapplyp
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mmapplypolicy fs1 -I test The syste
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mmauth Command Name mmauth - Manage
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-r {uid:gid | no} Specifies a root
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See also “mmremotefs Command” o
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Options -R Indicates to resume the
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mmchattr Command Name mmchattr - Ch
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The system displays output similar
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fully qualified domain name. Otherw
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Location /usr/lpp/mmfs/bin mmchclus
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network connections, but data sent
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seconds to wait for those servers t
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Security You must have root authori
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Specify only disk names when using
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-g GroupQuotaFileName Replace the c
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mmchfileset Command Name mmchfilese
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mmchfs Command Name mmchfs - Change
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To deactivate quota management afte
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mmchmgr Command Name mmchmgr - Assi
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mmchnsd Command Name mmchnsd - Chan
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See also “mmchdisk Command” on
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NodeDesc[,NodeDesc...] Specifies th
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GPFS cluster information ==========
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Fileset ’fset1’ created. mmcrfi
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Device The device name of the file
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-n NumNodes The estimated number of
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“mmfsck Command” on page 176
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publib.boulder.ibm.com/infocenter/c
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sdav1:k145n05:k145n06:dataOnly:4::p
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mmcrsnapshot Command Name mmcrsnaps
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The output is similar to this: Writ
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v The primary server is configured
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nonzero A failure has occurred. Sec
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mmdefedquota Command Name mmdefedqu
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mmdefquotaoff Command Name mmdefquo
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mmdefquotaon Command Name mmdefquot
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“mmlsquota Command” on page 221
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When using the rcp and rsh commands
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mmdelacl Command Name mmdelacl - De
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mmdeldisk Command Name mmdeldisk -
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Scanning file system metadata, phas
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mmdelfs Command Name mmdelfs - Remo
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mmdelnode Command Name mmdelnode Re
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mmdelnsd Command Name mmdelnsd - De
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mmdelsnapshot Command Name mmdelsna
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mmdf Command Name mmdf - Queries av
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========= ============ ========= (d
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Table 5 describes how mmeditacl wor
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mmedquota Command Name mmedquota -
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fs1: USR quota is on; default quota
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2. The nodes in the GPFS cluster ca
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v Disk media failures v Partial dis
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Rules, 0 Migrate/Delete/Exclude Rul
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mmfsctl Command Name mmfsctl - Issu
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-F DiskFile Specifies a file contai
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mmgetacl Command Name mmgetacl - Di
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See also “mmeditacl Command” on
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1. Proper authorization is granted
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mmimportfs Command Name mmimportfs
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mmimportfs: Processing file system
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Examples This command links fileset
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data replication: 1 max 2 flags: st
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clusterType lc multinode yes autolo
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-d ″DiskName[;DiskName...]″ The
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Location /usr/lpp/mmfs/bin mmlsdisk
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Options -d Display the number of bl
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mmlsfs Command Name mmlsfs - Displa
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-j cluster Block allocation type -D
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file system manager node [from 199.
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Examples 1. To see how many nodes h
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mmlspolicy Command Name mmlspolicy
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mmlsquota Command Name mmlsquota -
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Block Limits | File Limits Filesyst
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Snapshots in file system fs1: [data
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Exit status 0 Successful completion
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Table 7 describes the mmpmon reques
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eads: 0 writes: 0 readdir: 0 inode
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mmputacl Command Name mmputacl - Se
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Location /usr/lpp/mmfs/bin mmputacl
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To confirm the change, issue this c
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Parameters RemoteClusterName Specif
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mmremotefs Command Name mmremotefs
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Location /usr/lpp/mmfs/bin mmremote
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GPFS quota management takes replica
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mmrestorefs Command Name mmrestoref
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fs1/.snapshots/snap2/file1 /fs1/.sn
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-r Migrates all data off suspended
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mmrestripefs Command Name mmrestrip
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Exit status 0 Successful completion
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mmrpldisk Command Name mmrpldisk -
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no only when you want to reuse disk
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mmsanrepairfs Command Name mmsanrep
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mmshutdown Command Name mmshutdown
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mmsnapdir Command Name mmsnapdir -
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4. Issuing: mmsnapdir fs1 -q The ou
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Chapter 9. GPFS programming interfa
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gpfs_acl_t Structure Name gpfs_acl_
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gpfs_cmp_fssnapid() Subroutine Name
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gpfs_direntx_t Structure Name gpfs_
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Parameters fileDesc The file descri
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gpfs_fgetattrs() Subroutine Name gp
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c = gpfs_fputattrs(f2, 0, buf); //c
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gpfs_fssnap_handle_t Structure Name
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gpfs_fstat() Subroutine Name gpfs_f
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gpfs_get_fssnaphandle_by_fssnapid()
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Location /usr/lpp/mmfs/lib/libgpfs.
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gpfs_get_fssnapid_from_fssnaphandle
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gpfs_get_pathname_from_fssnaphandle
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Examples For an example using gpfs_
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gpfs_getacl() Subroutine Name gpfs_
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gpfs_iattr_t Structure Name gpfs_ia
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gpfs_iclose() Subroutine Name gpfs_
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gpfs_igetattrs() Subroutine Name gp
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gpfs_igetfilesetname() Subroutine N
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gpfs_igetstoragepool() Subroutine N
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gpfs_iopen() Subroutine Name gpfs_i
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gpfs_iread() Subroutine Name gpfs_i
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gpfs_ireaddir() Subroutine Name gpf
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gpfs_ireadlink() Subroutine Name gp
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gpfs_ireadx() Subroutine Name gpfs_
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gpfs_iscan_t Structure Name gpfs_is
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iattr Pointer to the returned point
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gpfs_open_inodescan() Subroutine Na
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gpfs_prealloc() Subroutine Name gpf
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gpfs_putacl() Subroutine Name gpfs_
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gpfs_quotactl() Subroutine Name gpf
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E_NO_QUOTA_INST The file system doe
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gpfs_seek_inode() Subroutine Name g
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gpfs_stat() Subroutine Name gpfs_st
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gpfsCancelHints_t Structure Name gp
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gpfsDataShipMap_t Structure Name gp
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gpfsDataShipStart_t Structure Name
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The value of numInstances is incons
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gpfsFcntlHeader_t Structure Name gp
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gpfsGetFilesetName_t Structure Name
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GPFS_FCNTL_STATUS_METAUPDATEMISS Th
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gpfsGetStoragePool_t Structure Name
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write. A sample program gpfsperf, w
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gpfsSetReplication_t Structure Name
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gpfsSetStoragePool_t Structure Name
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Chapter 10. GPFS user exits Table 1
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nsddevices User exit Name nsddevice
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Appendix A. Considerations for GPFS
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Appendix B. File system format chan
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Notices This information was develo
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v System Storage v Tivoli v TotalS
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Glossary This glossary defines tech
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fragment. The space allocated for a
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secondary GPFS cluster configuratio
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Bibliography This bibliography cont
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v Connectivity Guidelines for Synch
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Index Special characters .rhosts fi
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disaster recovery 181 disk descript
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gpfs_get_fssnaphandle_by_fssnapid()
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nsdServerWaitTimeWindowOnMount attr
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traditional ACL 104, 122, 168, 169,
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Reader’s comments - We’d like t
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�� Program Number: 5724-N
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