Novell LINUX ENTERPRISE SERVER 10 - STORAGE ADMINISTRATION GUIDE 7-2007, Administration Manual

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74 SLES 10 Storage Administration Guide
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6 Monitor the status of the RAID to verify the process has begun.
For information about how monitor RAID status, see
Section 6.6, “Monitoring Status for a
RAID,” on page 74 .
7 Continue with Section 6.5.4, “Removing the Failed Disk,” on page 74 .
6.5.4 Removing the Failed Disk
You can remove the failed disk at any time after it has been replaced with the spare disk. EVMS
does not make the device available for other use until you remove it from the RAID. After you
remove it, the disk appears in the
Available-Objects list in the EVMS GUI, where it can be used for
any purpose.
NOTE: If you pull a disk or if it is totally unusable, EVMS no longer recognizes the failed disk as
part of the RAID.
The RAID device can be active and in use when you remove its faulty object.
1 In EVMS, select the Actions > Remove > Faulty Object from a Region (the
remfaulty
plug-
in the EVMS GUI).
2 Select the RAID device you want to manage from the list of Regions, then click Next .
3 Select the failed disk.
4
Click Remove .
6.6 Monitoring Status for a RAID
Š Section 6.6.1, “Monitoring Status with EVMSGUI,” on page 74
Š
Section 6.6.2, “Monitoring Status with /proc/mdstat,” on page 74
Š Section 6.6.3, “Monitoring Status with mdadm,” on page 75
Š
Section 6.6.4, “Monitoring a Remirror or Reconstruction,” on page 77
Š Section 6.6.5, “Configuring mdadm to Send an E-Mail Alert for RAID Events,” on page 77
6.6.1 Monitoring Status with EVMSGUI
The Regions tab in EVMS GUI (
evmsgui
) reports any software RAID devices that are defined and
whether they are currently active.
6.6.2 Monitoring Status with /proc/mdstat
A summary of RAID and status information (active/not active) is available in the
/proc/mdstat
file.
1
Open a terminal console, then log in as the
root
user or equivalent.
2 View the
/proc/mdstat
file by entering the following at the console prompt:
cat /proc/mdstat
3 Evaluate the information.
The following table shows an example output and how to interpret the information.