Hitachi 3080 G1, Hardware Reference Manual

Page: 84 / 138

Procedure
1. Log in to each node/server using the SSH process, which is described in
Accessing Linux on the server and node on page 81 .
2. Verify the mapping of physical disks to SCSI devices.
To display the mapping between the physical drive and the dev/sdX
name, there are symlinks displayed by the output from the
/ls -
l /dev/disk/by-path
command.
In the example below, the portion of the output that displays the
mapping between the SATA port and the SCSI device number is
underlined. This example shows the standard post boot situation, where
SATA port 0 (Physical Drive A) is
/dev/sda
and port 2 (Physical Drive B)
is
/dev/sdb
.
mercury100:~$ ls -l /dev/disk/by-path
total 0
lrwxrwxrwx 1 root root 9 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-0:0:0:0 -> ../../sda
lrwxrwxrwx 1 root root 10 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-0:0:0:0-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-0:0:0:0-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-0:0:0:0-part3 -> ../../sda3
lrwxrwxrwx 1 root root 10 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-0:0:0:0-part5 -> ../../sda5
lrwxrwxrwx 1 root root 10 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-0:0:0:0-part6 -> ../../sda6
lrwxrwxrwx 1 root root 9 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-2:0:0:0 -> ../../sdb
lrwxrwxrwx 1 root root 10 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-2:0:0:0-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-2:0:0:0-part2 -> ../../sdb2
lrwxrwxrwx 1 root root 10 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-2:0:0:0-part3 -> ../../sdb3
lrwxrwxrwx 1 root root 10 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-2:0:0:0-part5 -> ../../sdb5
lrwxrwxrwx 1 root root 10 2011-06-27 12:17 pci-0000:00:1f.2-
scsi-2:0:0:0-part6 -> ../../sdb6
mercury100:~$
3. Retrieve the SMART data for each of the internal disks by entering the
following commands:
• For disk A:
smartctl –a /dev/sda
• For disk B:
smartctl –a /dev/sdb
4. Review the Information section of the retrieved data to verify that the
SMART support is available and enabled on both disks.
In the sample output from the
smartctl
command below, the portion of
the information that indicates SMART support is underlined:
=== START OF INFORMATION SECTION ===
Device Model: ST9250610NS
Serial Number: 9XE00JL3
84 Hard disk replacement
Hitachi NAS Platform 3080 and 3090 G1 Hardware Reference