User`s guide

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Ahsay Universal Backup System
Administrator’s Guide
Ahsay Systems Corporation Limited 104
(October 17, 2013)
Volume
status icons indicate the various statuses of the volume. It is put
beyond the volume pie chart. Enclosed is the description of the volume status
icons:
Healthy The volume is healthy.
Degraded The volume is degraded. One or more providers (block
devices) of the volume are missing though the volume can still
be used. The volume can become healthy again with a rebuild
after replacing the missing providers. For details, please refer
to the [Troubleshooting] section.
Rebuilding This state will occur after the provider is replaced in the
volume. After rebuilding completed, the status will become
healthy again. The rebuilding state will not affect the read or
write operation of the volume.
Critical The volume is not available. It is better to suspend all I/O
activity before the volume has undergone further damage.
Missing The volume is missing. It cannot be accessed by the
AhsayUBS. It may be caused by:
 The volume is exported.
 The local storage is disconnected.
For details, please refer to the [Troubleshooting] section.
Disconnected The corresponding remote disk’s connection is lost. Please
bring the remote storage host up (e.g. iSCSI initiator) to
reconnect the remote disk. In order to prevent any data access
to the remote storage, the AhsayOBS & AhsayRPS and OBSR
Share service will not be allowed to start. Do not try to access
anything before reconnecting the remote volume.
The following volume information that will be shown below the volume pie
chart:
- Volume ID: ‘system’ denotes system storage while 'es????' pattern
denotes the volume identity.
- RAID Type: RAID type of the volume.
- Filesystem Type: Filesystem type of the volume (UFS or ZFS).
- Total: Total size available for the volume.
- Free: Free space available for the volume to use.
The hard disk icons ‘
’ below the text shows number of the providers for the
volume and its status:
Healthy The provider is healthy.
Degraded Part of the provider is not available. It is advised to backup
the data in the volume and build a new volume again.
Rebuilding The state will occur after the provider is replaced in the
volume. After rebuilding completed, the status will become
healthy again.
Disconnected The connection of the remote disk is lost. Please bring the
remote storage host up (e.g. iSCSI initiator) to reconnect the
remote disk.