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mmadddisk Command Note: Rebalancing of files is an I/O intensive and time consuming operation, and is important only for file systems with large files that are mostly invariant. In many cases, normal file update and creation will rebalance your file system over time, without the cost of the rebalancing. -v {yes | no} Verify that specified disks do not belong to an existing file system. The default is -v yes. Specify -v no only when you want to reuse disks that are no longer needed for an existing file system. If the command is interrupted for any reason, you must use the -v no option on the next invocation of the command. Exit status 0 Successful completion. nonzero A failure has occurred. Security You must have root authority to run the mmadddisk command. You may issue the mmadddisk command from any node in the GPFS cluster. When using the rcp and rsh commands for remote communication, a properly configured .rhosts file must exist in the root user’s home directory on each node in the GPFS cluster. If you have designated the use of a different remote communication program on the mmcrcluster or the mmchcluster command, you must ensure: 1. Proper authorization is granted to all nodes in the GPFS cluster. 2. The nodes in the GPFS cluster can communicate without the use of a password, and without any extraneous messages. Examples To add the disks whose descriptors are located in ./disk_pools to the file system fs1 and rebalance the existing files after it is added, issue this command: mmadddisk fs1 -F ./disk_pools -r The system displays information similar to: GPFS: 6027-531 The following disks of fs1 will be formatted on node k148n07.kgn.ibm.com: gpfs10nsd: size 2202180 KB Extending Allocation Map Creating Allocation Map for storage pool ’pool2’ 75 % complete on Thu Feb 16 13:57:52 2006 100 % complete on Thu Feb 16 13:57:54 2006 Flushing Allocation Map for storage pool ’pool2’ GPFS: 6027-535 Disks up to size 24 GB can be added to storage pool pool2. Checking allocation map for storage pool system 62 % complete on Thu Feb 16 13:58:03 2006 100 % complete on Thu Feb 16 13:58:06 2006 Checking allocation map for storage pool pool1 62 % complete on Thu Feb 16 13:58:11 2006 100 % complete on Thu Feb 16 13:58:14 2006 Checking allocation map for storage pool pool2 63 % complete on Thu Feb 16 13:58:19 2006 100 % complete on Thu Feb 16 13:58:22 2006 GPFS: 6027-1503 Completed adding disks to file system fs1. mmadddisk: 6027-1371 Propagating the cluster configuration data to all affected nodes. This is an asynchronous process. 64 GPFS: Administration and Programming Reference
Restriping fs1 ... Thu Feb 16 13:58:48 est 2006: mmcommon pushSdr_async: mmsdrfs propagation started Thu Feb 16 13:58:52 est 2006: mmcommon pushSdr_async: mmsdrfs propagation completed; mmdsh rc = 0 GPFS: 6027-589 Scanning file system metadata, phase 1 ... GPFS: 6027-552 Scan completed successfully. GPFS: 6027-589 Scanning file system metadata, phase 2 ... GPFS: 6027-552 Scan completed successfully. GPFS: 6027-589 Scanning file system metadata, phase 3 ... GPFS: 6027-552 Scan completed successfully. GPFS: 6027-589 Scanning file system metadata, phase 4 ... GPFS: 6027-552 Scan completed successfully. GPFS: 6027-565 Scanning user file metadata ... 68 % complete on Thu Feb 16 13:59:06 2006 100 % complete on Thu Feb 16 13:59:07 2006 GPFS: 6027-552 Scan completed successfully. Done See also “mmchdisk Command” on page 94 “mmcrnsd Command” on page 126 “mmdeldisk Command” on page 151 “mmlsdisk Command” on page 202 “mmlsnsd Command” on page 216 Location /usr/lpp/mmfs/bin mmadddisk Command Chapter 8. GPFS commands 65
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General Parallel File System Admini
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Note: Before using this information
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Chapter 4. Managing disks . . . . .
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mmrestripefile Command . . . . . .
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viii GPFS: Administration and Progr
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x GPFS: Administration and Programm
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Table 1. Typographic conventions (c
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- The mmmount and mmumount commands
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- The local cluster no longer needs
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xviii GPFS: Administration and Prog
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2 GPFS: Administration and Programm
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Remote shell command: /usr/bin/rsh
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v A node being deleted cannot be th
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You may be able to tune your cluste
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The system displays information sim
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If it becomes necessary to stop GPF
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Page 40 and 41: Restriping offers the opportunity t
Page 42 and 43: See the “mmdf Command” on page
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Page 48 and 49: gpfs3nsd 0903C1573F2AD7B6 /dev/sdb1
Page 50 and 51: 12 % complete on Fri Feb 3 16:02:39
Page 52 and 53: suspended Indicates that data is to
Page 54 and 55: v You must identify the disks by th
Page 58 and 59: To disable quota management: 1. Iss
Page 60 and 61: During the normal operation of file
Page 62 and 63: The system displays output similar
Page 66 and 67: Each GPFS file or directory has an
Page 68 and 69: group::rwx- #effective:rw-- other::
Page 70 and 71: 2. A Directory ACL is similar to th
Page 72 and 73: This ACL shows four ACL entries (an
Page 74 and 75: general suggestion is for the compu
Page 80 and 81: Table 4. GPFS commands (continued)
Page 82 and 83: mmadddisk Command mmadddisk Command
Page 86 and 87: mmaddnode Command Name mmaddnode Ad
Page 88 and 89: mmaddnode Command See also “mmchc
Page 90 and 91: mmapplypolicy Command how the mmapp
Page 92 and 93: mmapplypolicy Command MIGRATED /fs1
Page 94 and 95: mmauth Command delete Deletes a clu
Page 96 and 97: mmauth Command mmauth: Propagating
Page 98 and 99: mmbackup Command Name mmbackup - Ba
Page 100 and 101: mmbackup Command Tue Mar 18 14:03:2
Page 102 and 103: mmchattr Command -m MetadataReplica
Page 104 and 105: mmchcluster Command Name mmchcluste
Page 106 and 107: mmchcluster Command Security You mu
Page 108 and 109: mmchconfig Command Name mmchconfig
Page 110 and 111: mmchconfig Command dmapiMountTimeou
Page 112 and 113: mmchconfig Command and search for n
Page 114 and 115: mmchdisk Command Name mmchdisk - Ch
Page 116 and 117: mmchdisk Command resume Informs GPF
Page 118 and 119: mmcheckquota Command Name mmcheckqu
Page 120 and 121: mmcheckquota Command 55 % complete
Page 122 and 123: mmchfileset Command Examples This c
Page 124 and 125: mmchfs Command If your file system
Page 126 and 127: mmchfs Command When considering dat
Page 128 and 129: mmchmgr Command GPFS: 6027-628 Send
Page 130 and 131: mmchnsd Command Options NONE DiskNa
Page 132 and 133: mmchpolicy Command Name mmchpolicy
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mmcrcluster Command Name mmcrcluste
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mmcrcluster Command If your primary
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mmcrfileset Command Name mmcrfilese
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mmcrfs Command Name mmcrfs - Create
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mmcrfs Command Options other disk)
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mmcrfs Command -z {yes | no} Enable
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mmcrnsd Command Name mmcrnsd - Crea
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mmcrnsd Command Note: This name can
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mmcrnsd Command Location /usr/lpp/m
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mmcrsnapshot Command Options NONE I
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mmcrvsd Command Name mmcrvsd - Crea
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mmcrvsd Command Options dataOnly In
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mmcrvsd Command See also “mmcrnsd
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mmdefedquota Command -u Specifies t
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mmdefquotaoff Command mmlsquota -d
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mmdefquotaon Command Security You m
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mmdefragfs Command Name mmdefragfs
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mmdefragfs Command gpfs60nsd 50688
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mmdelacl Command “mmputacl Comman
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mmdeldisk Command -F DescFile A fil
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mmdelfileset Command Name mmdelfile
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mmdelfileset Command 88 % complete
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mmdelfs Command Examples To delete
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mmdelnode Command Exit status 0 Suc
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mmdelnsd Command Options NONE Exit
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mmdelsnapshot Command When using th
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mmdf Command Exit status 0 Successf
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mmeditacl Command Name mmeditacl -
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mmeditacl Command Exit status 0 Suc
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mmedquota Command Group Name or gro
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mmexportfs Command Name mmexportfs
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mmfsck Command Name mmfsck - Checks
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mmfsck Command -n Specifies a no re
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mmfsck Command See also “mmcheckq
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mmfsctl Command v Modifications to
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mmfsctl Command lunA2 FlashCopy tar
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mmgetacl Command Parameters Filenam
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mmgetstate Command Name The mmgetst
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mmgetstate Command See also “mmch
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mmimportfs Command Parameters Devic
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mmlinkfileset Command Name mmlinkfi
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mmlsattr Command Name mmlsattr - Qu
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mmlscluster Command Name mmlscluste
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mmlsconfig Command Name mmlsconfig
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mmlsdisk Command Name mmlsdisk - Di
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mmlsdisk Command disk driver sector
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mmlsfileset Command Name mmlsfilese
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mmlsfileset Command 3. These comman
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mmlsfs Command -o Additional mount
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mmlsmgr Command Name mmlsmgr - Disp
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mmlsmount Command Name mmlsmount -
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mmlsnsd Command Name mmlsnsd - Disp
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mmlsnsd Command gpfs1 gpfs1nsd 0972
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mmlspolicy Command mmlspolicy fs2 -
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mmlsquota Command When a quota mana
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mmlssnapshot Command Name mmlssnaps
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mmmount Command Name mmmount - Moun
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mmpmon Command Name mmpmon - Manage
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mmpmon Command Use of the -i flag i
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mmpmon Command bytes written: 13946
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mmputacl Command Options -d Specifi
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mmquotaoff Command Name mmquotaoff
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mmquotaon Command Name mmquotaon -
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mmremotecluster Command Name mmremo
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mmremotecluster Command 2. This com
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mmremotefs Command Options -A {yes
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mmrepquota Command Name mmrepquota
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mmrepquota Command *** Report for U
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mmrestorefs Command Exit status 0 S
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mmrestripefile Command Name mmrestr
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mmrestripefile Command See also “
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mmrestripefs Command Assuming that
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mmrestripefs Command See also “mm
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mmrpldisk Command The disk descript
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mmrpldisk Command See also “mmadd
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mmsanrepairfs Command Repairing hyp
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mmshutdown Command When using the r
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mmsnapdir Command nonzero A failure
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mmstartup Command Name mmstartup -
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mmumount Command Name mmumount - Un
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mmunlinkfileset Command Name mmunli
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mmunlinkfileset Command See also
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Table 9. GPFS programming interface
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gpfs_close_inodescan() Subroutine N
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gpfs_cmp_fssnapid() Subroutine Loca
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gpfs_fcntl() Subroutine Name gpfs_f
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gpfs_fcntl() Subroutine fcntlArg.po
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gpfs_fputattrs() Subroutine Name gp
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gpfs_free_fssnaphandle() Subroutine
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gpfs_fssnap_id_t Structure Name gpf
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gpfs_get_fsname_from_fssnaphandle()
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gpfs_get_fssnaphandle_by_name() Sub
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gpfs_get_fssnaphandle_by_path() Sub
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gpfs_get_fssnapid_from_fssnaphandle
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gpfs_get_snapdirname() Subroutine N
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gpfs_get_snapname_from_fssnaphandle
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gpfs_getacl() Subroutine Error stat
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gpfs_iattr_t Structure /* don’t r
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gpfs_ifile_t Structure Name gpfs_if
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gpfs_igetattrs() Subroutine GPFS_E_
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gpfs_igetfilesetname() Subroutine E
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gpfs_igetstoragepool() Subroutine E
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gpfs_iopen() Subroutine Exceptions
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gpfs_iread() Subroutine EPERM The c
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gpfs_ireaddir() Subroutine Examples
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gpfs_ireadlink() Subroutine Locatio
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gpfs_ireadx() Subroutine offset On
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gpfs_next_inode() Subroutine Name g
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gpfs_opaque_acl_t Structure Name gp
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gpfs_open_inodescan() Subroutine No
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gpfs_prealloc() Subroutine Exceptio
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gpfs_putacl() Subroutine Exceptions
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gpfs_quotactl() Subroutine Q_SETQUO
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gpfs_quotaInfo_t Structure Name gpf
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gpfs_seek_inode() Subroutine Locati
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gpfsAccessRange_t Structure Name gp
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gpfsClearFileCache_t Structure Name
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gpfsDataShipMap_t Structure partiti
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gpfsDataShipStart_t Structure flag
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gpfsDataShipStop_t Structure Name g
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gpfsFreeRange_t Structure Name gpfs
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gpfsGetReplication_t Structure Name
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gpfsGetSnapshotName_t Structure Nam
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gpfsMultipleAccessRange_t Structure
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gpfsRestripeData_t Structure Name g
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gpfsSetReplication_t Structure rese
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366 GPFS: Administration and Progra
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mmsdrbackup User exit mmsdrbackup U
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syncfsconfig User exit Name syncfsc
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GPFS exceptions and limitations to
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2455 South Road, Poughkeepsie, NY 1
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metadataOnly Indicates that the dis
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v manager | client - Indicates whet
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v For AIX nodes, see Installing the
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RPM at www.rpm.org/ The Internet En
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commands (continued) mmchfileset 10
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file systems (continued) creating 1
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mmchattr 19, 81 mmchcluster 6, 84 m
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setting access control lists 46 sna
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