Category: Blog for Unix Admin

8

Solaris Solstice DiskSuite: recover a metadevice that is in an unstable state OR how to recreate metadevice without losing data

When  a metadevice goes into an undefined state,  recovery of metadevice with meta commands is problematic.   The workaround is to re-create the metadevice after carefully recording the current configuration from metastat -p.   The procedure is a bit risky if not followed carefully, so keep the backup handy....

3

Solaris SVM – How to check on a running machine which disk was used to boot.

It is often possible that we boot from a Solaris machine from one of the root mirror disk, and after sometime we forget current active disk. And the information of active boot disk is important while we perform SVM maintenance disks. This post will help you...

8

Solaris SVM : Disk replacement for Systems With Internal FCAL Drives Under SVM (V280R, V480, V490, V880, V890):

Beginning with Solaris 9 Operating System (OS), Solaris Volume Manager (SVM) software uses a new feature called Device-ID (or DevID), which identifies each disk not only by it’s c#t#d# name, but also by a unique ID generated by the disk’s World Wide Number (WWN), or serial...

1

Solaris SVM : Create a new DiskSuite configuration which points to the data correctly without requiring a backup & restore.

Create a new DiskSuite configuration which  points to the data correctly without requiring a backup & restore. There are occasions you wish to physically move disks to a new controller or to a new host (at which point, the device names may change).

6

Solaris SVM: Recovery procedures when BOTH sides of the mirror indicate a "Last Erred" state

As a result of unusual failures such as multiple power failures, Solstice DiskSuite /Solaris  Volume Manager both submirrors of a metadevice mirror may be left in an unusual “Last Erred / Last Erred” state making it impossible to determine exactly which submirror must be fixed/replaced first...

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