GPFS: Administration and Programming Reference - IRA Home

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Chapter 4. Managing disks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Displaying disks in a GPFS cluster . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Adding disks to a file system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Deleting disks from a file system . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Replacing disks in a GPFS file system . . . . . . . . . . . . . . . . . . . . . . . . . 30 Displaying GPFS disk states . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Changing GPFS disk states and parameters . . . . . . . . . . . . . . . . . . . . . . 32 Changing your NSD configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Changing NSD server usage and failback . . . . . . . . . . . . . . . . . . . . . . . 34 Chapter 5. Managing GPFS quotas . . . . . . . . . . . . . . . . . . . . . . . . . 37 Enabling and disabling GPFS quota management . . . . . . . . . . . . . . . . . . . . 37 Default quotas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Explicitly establishing and changing quotas . . . . . . . . . . . . . . . . . . . . . . . 38 Checking quotas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Listing quotas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Activating quota limit checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Deactivating quota limit checking . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Creating file system quota reports . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Restoring quota files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Chapter 6. Managing GPFS access control lists and NFS export . . . . . . . . . . . . . 45 Traditional GPFS ACL administration . . . . . . . . . . . . . . . . . . . . . . . . . 45 Setting traditional GPFS access control lists . . . . . . . . . . . . . . . . . . . . . 46 Displaying traditional GPFS access control lists . . . . . . . . . . . . . . . . . . . . 47 Applying an existing traditional GPFS access control list . . . . . . . . . . . . . . . . . 47 Changing traditional GPFS access control lists . . . . . . . . . . . . . . . . . . . . . 48 Deleting traditional GPFS access control lists . . . . . . . . . . . . . . . . . . . . . 48 NFS V4 ACL administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 NFS V4 ACL Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 NFS V4 ACL translation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Setting NFS V4 access control lists . . . . . . . . . . . . . . . . . . . . . . . . . 51 Displaying NFS V4 access control lists . . . . . . . . . . . . . . . . . . . . . . . 52 Applying an existing NFS V4 access control lists . . . . . . . . . . . . . . . . . . . . 52 Changing NFS V4 access control lists . . . . . . . . . . . . . . . . . . . . . . . . 52 Deleting NFS V4 access control lists . . . . . . . . . . . . . . . . . . . . . . . . 52 GPFS exceptions and limitations to NFS V4 ACLs . . . . . . . . . . . . . . . . . . . 52 NFS and GPFS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Exporting a GPFS file system using NFS . . . . . . . . . . . . . . . . . . . . . . . 52 NFS usage of GPFS cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Synchronous writing using NFS . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Unmounting a file system after NFS export . . . . . . . . . . . . . . . . . . . . . . 55 NIS automount considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Chapter 7. Communicating file access patterns to GPFS . . . . . . . . . . . . . . . . . 57 Chapter 8. GPFS commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 mmadddisk Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 mmaddnode Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 mmapplypolicy Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 mmauth Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 mmbackup Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 mmchattr Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 mmchcluster Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 iv GPFS: Administration and Programming Reference
mmchconfig Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 mmchdisk Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 mmcheckquota Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 mmchfileset Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 mmchfs Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 mmchmgr Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 mmchnsd Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 mmchpolicy Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 mmcrcluster Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 mmcrfileset Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 mmcrfs Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mmcrnsd Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 mmcrsnapshot Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 mmcrvsd Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 mmdefedquota Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 mmdefquotaoff Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 mmdefquotaon Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 mmdefragfs Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 mmdelacl Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 mmdeldisk Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 mmdelfileset Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 mmdelfs Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 mmdelnode Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 mmdelnsd Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 mmdelsnapshot Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 mmdf Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 mmeditacl Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 mmedquota Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 mmexportfs Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 mmfsck Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 mmfsctl Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181 mmgetacl Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 mmgetstate Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 mmimportfs Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 mmlinkfileset Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 mmlsattr Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 mmlscluster Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 mmlsconfig Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mmlsdisk Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202 mmlsfileset Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 mmlsfs Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 mmlsmgr Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 mmlsmount Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 mmlsnsd Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 mmlspolicy Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219 mmlsquota Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 mmlssnapshot Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224 mmmount Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226 mmpmon Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228 mmputacl Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 mmquotaoff Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236 mmquotaon Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 mmremotecluster Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 mmremotefs Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243 mmrepquota Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246 mmrestorefs Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249 Contents v
Page 1: General Parallel File System Admini
Page 4 and 5: Note: Before using this information
Page 8 and 9: mmrestripefile Command . . . . . .
Page 10 and 11: viii GPFS: Administration and Progr
Page 12 and 13: x GPFS: Administration and Programm
Page 14 and 15: Table 1. Typographic conventions (c
Page 16 and 17: - The mmmount and mmumount commands
Page 18 and 19: - The local cluster no longer needs
Page 20 and 21: xviii GPFS: Administration and Prog
Page 22 and 23: 2 GPFS: Administration and Programm
Page 24 and 25: Remote shell command: /usr/bin/rsh
Page 26 and 27: v A node being deleted cannot be th
Page 28 and 29: You may be able to tune your cluste
Page 30 and 31: The system displays information sim
Page 32 and 33: If it becomes necessary to stop GPF
Page 34 and 35: ecorded in the GPFS configuration f
Page 36 and 37: Checking and repairing a file syste
Page 38 and 39: -j scatter Block allocation type -D
Page 40 and 41: Restriping offers the opportunity t
Page 42 and 43: See the “mmdf Command” on page
Page 44 and 45: 2. The TSM client code must be inst
Page 46 and 47: 26 GPFS: Administration and Program
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 56 and 57:
36 GPFS: Administration and Program
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 64 and 65:
Page 66 and 67:
Each GPFS file or directory has an
Page 68 and 69:
group::rwx- #effective:rw-- other::
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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 76 and 77:
Page 78 and 79:
Page 80 and 81:
Table 4. GPFS commands (continued)
Page 82 and 83:
mmadddisk Command mmadddisk Command
Page 84 and 85:
mmadddisk Command Note: Rebalancing
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
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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
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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 144 and 145:
mmcrfs Command -z {yes | no} Enable
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
Page 194 and 195:
mmexportfs Command Name mmexportfs
Page 196 and 197:
mmfsck Command Name mmfsck - Checks
Page 198 and 199:
mmfsck Command -n Specifies a no re
Page 200 and 201:
mmfsck Command See also “mmcheckq
Page 202 and 203:
mmfsctl Command v Modifications to
Page 204 and 205:
mmfsctl Command lunA2 FlashCopy tar
Page 206 and 207:
mmgetacl Command Parameters Filenam
Page 208 and 209:
mmgetstate Command Name The mmgetst
Page 210 and 211:
mmgetstate Command See also “mmch
Page 212 and 213:
mmimportfs Command Parameters Devic
Page 214 and 215:
mmlinkfileset Command Name mmlinkfi
Page 216 and 217:
mmlsattr Command Name mmlsattr - Qu
Page 218 and 219:
mmlscluster Command Name mmlscluste
Page 220 and 221:
mmlsconfig Command Name mmlsconfig
Page 222 and 223:
mmlsdisk Command Name mmlsdisk - Di
Page 224 and 225:
mmlsdisk Command disk driver sector
Page 226 and 227:
mmlsfileset Command Name mmlsfilese
Page 228 and 229:
mmlsfileset Command 3. These comman
Page 230 and 231:
mmlsfs Command -o Additional mount
Page 232 and 233:
mmlsmgr Command Name mmlsmgr - Disp
Page 234 and 235:
mmlsmount Command Name mmlsmount -
Page 236 and 237:
mmlsnsd Command Name mmlsnsd - Disp
Page 238 and 239:
mmlsnsd Command gpfs1 gpfs1nsd 0972
Page 240 and 241:
mmlspolicy Command mmlspolicy fs2 -
Page 242 and 243:
mmlsquota Command When a quota mana
Page 244 and 245:
mmlssnapshot Command Name mmlssnaps
Page 246 and 247:
mmmount Command Name mmmount - Moun
Page 248 and 249:
mmpmon Command Name mmpmon - Manage
Page 250 and 251:
mmpmon Command Use of the -i flag i
Page 252 and 253:
mmpmon Command bytes written: 13946
Page 254 and 255:
mmputacl Command Options -d Specifi
Page 256 and 257:
mmquotaoff Command Name mmquotaoff
Page 258 and 259:
mmquotaon Command Name mmquotaon -
Page 260 and 261:
mmremotecluster Command Name mmremo
Page 262 and 263:
mmremotecluster Command 2. This com
Page 264 and 265:
mmremotefs Command Options -A {yes
Page 266 and 267:
mmrepquota Command Name mmrepquota
Page 268 and 269:
mmrepquota Command *** Report for U
Page 270 and 271:
mmrestorefs Command Exit status 0 S
Page 272 and 273:
mmrestripefile Command Name mmrestr
Page 274 and 275:
mmrestripefile Command See also “
Page 276 and 277:
mmrestripefs Command Assuming that
Page 278 and 279:
mmrestripefs Command See also “mm
Page 280 and 281:
mmrpldisk Command The disk descript
Page 282 and 283:
mmrpldisk Command See also “mmadd
Page 284 and 285:
mmsanrepairfs Command Repairing hyp
Page 286 and 287:
mmshutdown Command When using the r
Page 288 and 289:
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 340 and 341:
gpfs_iread() Subroutine EPERM The c
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
Page 386 and 387:
366 GPFS: Administration and Progra
Page 388 and 389:
mmsdrbackup User exit mmsdrbackup U
Page 390 and 391:
syncfsconfig User exit Name syncfsc
Page 392 and 393:
GPFS exceptions and limitations to
Page 394 and 395:
Page 396 and 397:
2455 South Road, Poughkeepsie, NY 1
Page 398 and 399:
Page 400 and 401:
metadataOnly Indicates that the dis
Page 402 and 403:
v manager | client - Indicates whet
Page 404 and 405:
Page 406 and 407:
v For AIX nodes, see Installing the
Page 408 and 409:
RPM at www.rpm.org/ The Internet En
Page 410 and 411:
commands (continued) mmchfileset 10
Page 412 and 413:
file systems (continued) creating 1
Page 414 and 415:
mmchattr 19, 81 mmchcluster 6, 84 m
Page 416 and 417:
setting access control lists 46 sna
Page 418 and 419:
Page 420:
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