Specifications

System Drives and System Drive Groups
38 SGI InfiniteStorage NAS Server and Titan Server
Backing up or
Restoring SD
Groups
BackingupandrestoringSDgroupsisasimple,quick,anderror‐freemethod
oftransferringSDgroupdefinitionsamongclustersorserversthatshare
storageorwhenmovingstoragebetweenservers/clusters.SDgroupsare
backedupasapartofthenormalserver/clusterconfigurationbackupprocess,
sobackingupSD
groupsisnotnecessaryforfailurerecovery.
BackingupSDgroupsimposesaveryslightmanagementoverhead,andmay
causeothermanagementfunctionstoslowdownslightlyduringtheshort
timethebackupisbeingmade.Thereshouldbenonoticeableeffectonfile
servingthroughput.
AswithbackingupSD
groups,restoringsavedSDgroupswillnotcausea
significantoverhead,buttherearerulesaboutwhenyoucanandcannot
importgroups.Forexample,youcannotimportagroupthatincludesSDs
thatareusedinastoragepoolthathascurrentlymountedfilesystems.For
moreinformationonthese
restrictions,seethesd-groupcommandinthe
CommandLineReference.
Note:Whenmovingstoragebetweenstand‐aloneserversorclusters,beaware
thatSDdeviceIDsusuallychange,whichmaymakeitseemasifgroupshave
beenimportedincorrectly.
TobackuporrestoreSDGroups:
1. NavigatetotheSystemDriveGroupsBackup&
Restorepage.
FromtheStorageManagementpage,selectSystemDriveGroups,then
clickBackup&RestoretodisplaytheSystemDriveGroupsBackup&
Restorepage.
2. Backuporrestore:
• Tobackup:Clickbackup.Inthebrowser,specifythenameand
locationofthebackupfile,thenclickOK/Save(thebuttonsdisplayed
andthemethodyouusetosavethebackupfiledependonthebrowser
youuse).
Abackupfilenameissuggested,butyoucancustomizeit.The
suggestedfilenameusesthesyntax: