As UNIX Systems Administrators, we want our systems up and running – 24 hours a day, 7 days a week. Though this could be achievable with the UNIX Operating Systems, we cannot set aside the fact that our hardware equipment are prone to wear and tear. One notable point of failure if our root or boot disks. Once it dies out – our only way is thru our backup and restore it. But there is another way that we could prevent this – if we have a spare identical disk as our root disk. We can have a redundant machine by having our root disks mirrored and make our system much reliable and omit this point of failure. Here are the step-by-step how to guide in mirroring our root/boot disk using the Solaris Volume Manager (SVM).
Solaris Volume Manager (SVM) formerly called as Online DiskSuite and Solstice Disk Suite (SDS) is a volume manager that comes with the standard installation of Solaris 8, 9, and 10. But soft partition functionality was not included on the first release of SDS on Solaris 8, but it could be added with patch 108693-06 (latest). Upon introduction of Solaris 9, soft partition is included in SVM as one of it’s functionality.