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mmcrfs Command -z {yes | no} Enable or disable DMAPI on the file system. The default is -z no. For further information on DMAPI for GPFS, see General Parallel File System: Data Management API Guide. Exit status 0 Successful completion. nonzero A failure has occurred. Security You must have root authority to run the mmcrfs command. You may issue the mmcrfs 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 either 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. When considering data replication for files accessible to SANergy, see SANergy export considerations in General Parallel File System: Advanced Administration Guide. Examples This example creates a file system named gpfs1, using three disks, with a block size of 512 KB, allowing metadata and data replication to be 2 and turning quotas on: mmcrfs /gpfs1 gpfs1 "hd3vsdn100;sdbnsd;sdensd" -B 512K -M 2 -R 2 -Q yes The system displays output similar to: The following disks of gpfs1 will be formatted on node k5n95.kgn.ibm.com: hd3vsdn100: size 17760256 KB sdbnsd: size 70968320 KB sdensd: size 70968320 KB Formatting file system ... Disks up to size 208 GB can be added to storage pool system. Creating Inode File Creating Allocation Maps Clearing Inode Allocation Map Clearing Block Allocation Map Completed creation of file system /dev/gpfs1.mmcrfs: Propagating the cluster configuration data to allaffected nodes. This is an asynchronous process. See also “mmchfs Command” on page 103 “mmdelfs Command” on page 157 “mmdf Command” on page 165 “mmedquota Command” on page 171 124 GPFS: Administration and Programming Reference
“mmfsck Command” on page 176 “mmlsfs Command” on page 209 Location /usr/lpp/mmfs/bin mmcrfs Command Chapter 8. GPFS commands 125
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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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ecorded in the GPFS configuration f
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Checking and repairing a file syste
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-j scatter Block allocation type -D
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Restriping offers the opportunity t
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See the “mmdf Command” on page
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2. The TSM client code must be inst
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26 GPFS: Administration and Program
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gpfs3nsd 0903C1573F2AD7B6 /dev/sdb1
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12 % complete on Fri Feb 3 16:02:39
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suspended Indicates that data is to
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v You must identify the disks by th
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To disable quota management: 1. Iss
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During the normal operation of file
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The system displays output similar
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Each GPFS file or directory has an
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group::rwx- #effective:rw-- other::
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2. A Directory ACL is similar to th
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This ACL shows four ACL entries (an
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general suggestion is for the compu
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Table 4. GPFS commands (continued)
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mmadddisk Command mmadddisk Command
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mmadddisk Command Note: Rebalancing
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mmaddnode Command Name mmaddnode Ad
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mmaddnode Command See also “mmchc
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mmapplypolicy Command how the mmapp
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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
Page 134 and 135: mmcrcluster Command Name mmcrcluste
Page 136 and 137: mmcrcluster Command If your primary
Page 138 and 139: mmcrfileset Command Name mmcrfilese
Page 140 and 141: mmcrfs Command Name mmcrfs - Create
Page 142 and 143: mmcrfs Command Options other disk)
Page 146 and 147: mmcrnsd Command Name mmcrnsd - Crea
Page 148 and 149: mmcrnsd Command Note: This name can
Page 150 and 151: mmcrnsd Command Location /usr/lpp/m
Page 152 and 153: mmcrsnapshot Command Options NONE I
Page 154 and 155: mmcrvsd Command Name mmcrvsd - Crea
Page 156 and 157: mmcrvsd Command Options dataOnly In
Page 158 and 159: mmcrvsd Command See also “mmcrnsd
Page 160 and 161: mmdefedquota Command -u Specifies t
Page 162 and 163: mmdefquotaoff Command mmlsquota -d
Page 164 and 165: mmdefquotaon Command Security You m
Page 166 and 167: mmdefragfs Command Name mmdefragfs
Page 168 and 169: mmdefragfs Command gpfs60nsd 50688
Page 170 and 171: mmdelacl Command “mmputacl Comman
Page 172 and 173: mmdeldisk Command -F DescFile A fil
Page 174 and 175: mmdelfileset Command Name mmdelfile
Page 176 and 177: mmdelfileset Command 88 % complete
Page 178 and 179: mmdelfs Command Examples To delete
Page 180 and 181: mmdelnode Command Exit status 0 Suc
Page 182 and 183: mmdelnsd Command Options NONE Exit
Page 184 and 185: mmdelsnapshot Command When using th
Page 186 and 187: mmdf Command Exit status 0 Successf
Page 188 and 189: mmeditacl Command Name mmeditacl -
Page 190 and 191: mmeditacl Command Exit status 0 Suc
Page 192 and 193: 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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