The way in which you replace a faulty disk drive depends on the application you are
using. Each application is different, but requires that you:
1. Determine which disk drive is failing or has failed
2. Remove the disk
3. Add the replacement drive
4. Reconfigure the operating environment
In all cases you must stop any activity or applications on the disk; unmount it;
physically remove the old drive and install the new one; and configure the Solaris
environment to recognize the drive. Then you must configure your application to
accept the new disk drive.
Prepare Spare Drives
If possible, prepare replacement disk drives in advance. Each replacement disk drive
should be formatted, labeled, and partitioned the same as the disk it will replace. See
the documentation for your application for instructions on how to format and
partition the disk, and add that disk to your application.
Identifying the Faulty Disk Drive
Disk errors may be reported in a number of different ways. Often you can find
messages about failing or failed disks in your system console. This information is
also logged in the
/usr/adm/messages
file(s). These error messages typically refer
to a failed disk drive by its physical device name (such as
/devices/pci@6,4000/scsi@4,1/sd@3,0
) and its UNIX device instance name
(such as
sd14
). In some cases, a faulty disk may be identified by its logical device
name, such as
c2t3d0
. In addition, some applications may report a disk slot number
(0 through 19) or activate an LED located next to the disk drive itself (see Figure 3–2).
20
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