Cisco Model D-PCG1000 PowerKEY CAS Gateway Installation Guide
Chapter 1 Replace a Disk Drive on a Sun Fire V880 and V890 Server
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Examine Mirrored Devices (12-Disk Setup)
The V880 and V890 servers support disk drive mirroring. Through disk mirroring,
the DNCS stores identical information across sets of hard disks.
After using the luxadm display command to determine the drive status, use the
check_metadevices command to determine if a single file system or multiple file
systems have been affected.
The V880/V890 12-disk configuration has a total of six mirrored disk drives. The
hard disks in drive bay 0 and drive bay 8 are mirrored, as are the hard disks in drive
bay 1 and drive bay 9. The hard disks in drive bays 2, 3, 4, 5 and drive bays 10, 11,
12, 13, respectively, are also mirrored.
Before you disable the disk mirroring functions of the V880 or V890 server in
preparation of replacing a disk drive, you should examine the status of the mirrored
disks in the system. Examining the status of the mirrored devices also tells you if a
specific disk slice needs maintenance.
the DNCS stores identical information across sets of hard disks.
After using the luxadm display command to determine the drive status, use the
check_metadevices command to determine if a single file system or multiple file
systems have been affected.
The V880/V890 12-disk configuration has a total of six mirrored disk drives. The
hard disks in drive bay 0 and drive bay 8 are mirrored, as are the hard disks in drive
bay 1 and drive bay 9. The hard disks in drive bays 2, 3, 4, 5 and drive bays 10, 11,
12, 13, respectively, are also mirrored.
Before you disable the disk mirroring functions of the V880 or V890 server in
preparation of replacing a disk drive, you should examine the status of the mirrored
disks in the system. Examining the status of the mirrored devices also tells you if a
specific disk slice needs maintenance.
Examining the Mirrored Devices
Complete these steps to examine the status of the mirrored disk drives on your
DNCS using the check_metadevices command.
Note: If you have been following the procedures in this chapter in order, you should
still be logged in to an xterm window as root user.
1 Type the following command and press Enter:
Complete these steps to examine the status of the mirrored disk drives on your
DNCS using the check_metadevices command.
Note: If you have been following the procedures in this chapter in order, you should
still be logged in to an xterm window as root user.
1 Type the following command and press Enter:
su - dncs
2 Type the following command and press Enter. The metadevice tool examines the
mirrored disk drives on your DNCS and indicates if a drive or a specific disk
slice needs maintenance.
slice needs maintenance.
/dvs/dncs/bin/check_metadevices
Example: Sample output pertaining to when a disk slice needs maintenance
follows:
follows:
WARNING: d520 metadevice Needs maintenance
Found Disk Problems at: Mon Jul 12 11:08:20 EDT 2004
Important: Write the name of the disk drive or disk slice that needs maintenance
on a separate sheet of paper.
on a separate sheet of paper.
3 Type exit and then press Enter to exit from the DNCS shell.