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gpfs_iread() Subroutine EPERM The caller does not have superuser privileges. ESTALE Cached file system information was not valid. GPFS_E_INVAL_IFILE Incorrect ifile parameter. Location /usr/lpp/mmfs/lib/libgpfs.a for AIX, /usr/lpp/mmfs/lib/libgpfs.so for Linux 320 GPFS: Administration and Programming Reference
gpfs_ireaddir() Subroutine Name gpfs_ireaddir() - Reads the next directory entry. Library GPFS Library (libgpfs.a for AIX, libgpfs.so for Linux) Synopsis #include int gpfs_ireaddir(gpfs_ifile_t *idir, const gpfs_direntx_t **dirent); Description The gpfs_ireaddir() subroutine returns the next directory entry in a file system. For an overview of using gpfs_ireaddir() in a backup application, see “Using APIs to develop backup applications” on page 24. Notes: 1. Compile any program that uses this subroutine with the -lgpfs flag from the following library: v libgpfs.a for AIX v libgpfs.so for Linux Parameters idir Pointer to gpfs_ifile_t from gpfs_iopen(). dirent Pointer to returned pointer to directory entry. Exit status If the gpfs_ireaddir() subroutine is successful, it returns a value of 0 and sets the dirent parameter to point to the returned directory entry. If there are no more GPFS directory entries, gpfs_ireaddir() returns a value of 0 and sets the dirent parameter to NULL. If the gpfs_ireaddir() subroutine is unsuccessful, it returns a value of -1 and sets the global error variable errno to indicate the nature of the error. Exceptions None. Error status ENOMEM Unable to allocate memory for request. ENOSYS The gpfs_ireaddir() subroutine is not available. ENOTDIR File is not a directory. EPERM The caller does not have superuser privileges. ESTALE The cached file system information was not valid. GPFS_E_INVAL_IFILE Incorrect ifile parameter. Chapter 9. GPFS programming interfaces 321
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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
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mmauth Command delete Deletes a clu
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mmauth Command mmauth: Propagating
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mmbackup Command Name mmbackup - Ba
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mmbackup Command Tue Mar 18 14:03:2
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mmchattr Command -m MetadataReplica
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mmchcluster Command Name mmchcluste
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mmchcluster Command Security You mu
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mmchconfig Command Name mmchconfig
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mmchconfig Command dmapiMountTimeou
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mmchconfig Command and search for n
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mmchdisk Command Name mmchdisk - Ch
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mmchdisk Command resume Informs GPF
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mmcheckquota Command Name mmcheckqu
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mmcheckquota Command 55 % complete
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mmchfileset Command Examples This c
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mmchfs Command If your file system
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mmchfs Command When considering dat
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mmchmgr Command GPFS: 6027-628 Send
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mmchnsd Command Options NONE DiskNa
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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
Page 290 and 291: mmstartup Command Name mmstartup -
Page 292 and 293: mmumount Command Name mmumount - Un
Page 294 and 295: mmunlinkfileset Command Name mmunli
Page 296 and 297: mmunlinkfileset Command See also
Page 298 and 299: Table 9. GPFS programming interface
Page 300 and 301: gpfs_close_inodescan() Subroutine N
Page 302 and 303: gpfs_cmp_fssnapid() Subroutine Loca
Page 304 and 305: gpfs_fcntl() Subroutine Name gpfs_f
Page 306 and 307: gpfs_fcntl() Subroutine fcntlArg.po
Page 308 and 309: gpfs_fputattrs() Subroutine Name gp
Page 310 and 311: gpfs_free_fssnaphandle() Subroutine
Page 312 and 313: gpfs_fssnap_id_t Structure Name gpf
Page 314 and 315: gpfs_get_fsname_from_fssnaphandle()
Page 316 and 317: gpfs_get_fssnaphandle_by_name() Sub
Page 318 and 319: gpfs_get_fssnaphandle_by_path() Sub
Page 320 and 321: gpfs_get_fssnapid_from_fssnaphandle
Page 322 and 323: gpfs_get_snapdirname() Subroutine N
Page 324 and 325: gpfs_get_snapname_from_fssnaphandle
Page 326 and 327: gpfs_getacl() Subroutine Error stat
Page 328 and 329: gpfs_iattr_t Structure /* don’t r
Page 330 and 331: gpfs_ifile_t Structure Name gpfs_if
Page 332 and 333: gpfs_igetattrs() Subroutine GPFS_E_
Page 334 and 335: gpfs_igetfilesetname() Subroutine E
Page 336 and 337: gpfs_igetstoragepool() Subroutine E
Page 338 and 339: gpfs_iopen() Subroutine Exceptions
Page 342 and 343: gpfs_ireaddir() Subroutine Examples
Page 344 and 345: gpfs_ireadlink() Subroutine Locatio
Page 346 and 347: gpfs_ireadx() Subroutine offset On
Page 348 and 349: gpfs_next_inode() Subroutine Name g
Page 350 and 351: gpfs_opaque_acl_t Structure Name gp
Page 352 and 353: gpfs_open_inodescan() Subroutine No
Page 354 and 355: gpfs_prealloc() Subroutine Exceptio
Page 356 and 357: gpfs_putacl() Subroutine Exceptions
Page 358 and 359: gpfs_quotactl() Subroutine Q_SETQUO
Page 360 and 361: gpfs_quotaInfo_t Structure Name gpf
Page 362 and 363: gpfs_seek_inode() Subroutine Locati
Page 364 and 365: gpfsAccessRange_t Structure Name gp
Page 366 and 367: gpfsClearFileCache_t Structure Name
Page 368 and 369: gpfsDataShipMap_t Structure partiti
Page 370 and 371: gpfsDataShipStart_t Structure flag
Page 372 and 373: gpfsDataShipStop_t Structure Name g
Page 374 and 375: gpfsFreeRange_t Structure Name gpfs
Page 376 and 377: gpfsGetReplication_t Structure Name
Page 378 and 379: gpfsGetSnapshotName_t Structure Nam
Page 380 and 381: gpfsMultipleAccessRange_t Structure
Page 382 and 383: gpfsRestripeData_t Structure Name g
Page 384 and 385: gpfsSetReplication_t Structure rese
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Page 388 and 389: 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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374 GPFS: Administration and Progra
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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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