Administrator Guide

Table Of Contents
Status Description Solution
copying to spare
Data is being written to a spare drive. None needed; informational
unsupported
version
Drive is running an unsupported rmware version. Contact your PS Series support provider.
When a drive in a RAID set fails, a member behaves as follows:
If a spare drive is available — Data from the failed drive is reconstructed on the spare. During the reconstruction, the RAID set
that contains the failed drive is temporarily degraded.
If a spare drive is not available, and the RAID set has not reached the maximum number of drive failures — The RAID set that
contains the failed drive is degraded. For RAID 5, RAID 50, or RAID 6, performance might decrease.
CAUTION: A drive failure in a RAID 5 or RAID 10 set that is degraded might result in data loss.
If a spare drive is not available, and the RAID set has reached the maximum number of drive failures — The member is set oine,
and any volumes and snapshots that have data stored on the member are set oine. Data might be lost and must be recovered
from a backup or replica.
When you replace a failed drive, a member behaves as follows:
If a spare drive was used — The new drive automatically becomes a spare, with no eect on performance.
If a RAID set was degraded — Data is automatically reconstructed on the new drive and performance goes back to normal after
reconstruction.
If a member was oine because of multiple RAID set drive failures — Any volume snapshots with data on the member are set
oine and data might be lost.
In some cases, a member might detect a problem with a drive. The member automatically copies the data on the failing drive to a
spare drive, with no impact on availability and little impact on performance. The group generates event messages informing you of
the progress of the copy-to-spare operation. I/O is written to both drives until the copy-to-spare operation completes. If the drive
completely fails during the operation, data is reconstructed on the spare using parity data as usual.
Replace any failed drives immediately. For information about replacing drives, see the Hardware Owner's Manual for your array
model or contact your PS Series support provider.
Monitor Network Hardware
A member must have at least one functioning network interface connected to a network and congured with an IP address. Each
control module has multiple Ethernet ports.
If you experience network problems, group members might lose the ability to communicate with each other over the network. In
such a group, some management operations are not allowed. For example, you cannot change the IP addresses of an isolated
member.
If the members of a group cannot communicate, identify and correct the network problems. Correcting these problems restores the
group to normal full operation, including network communication.
To display the network information:
1. Click Group.
2. Expand Members and select the member name.
3. Click the Network tab to display the IP Conguration panel.
The IP Conguration panel provides the following information:
Current status (under Status) — Current status of the network interface:
up — Operational, connected to a functioning network, congured with an IP address and subnet mask, and enabled
About Monitoring
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