HP Store Once 4900 Backup Maintenance and Service Guide
Table Of Contents
- Backup system service and maintenance guide for HP StoreOnce 4900 Backup
- Contents
- 1 Spares part numbers for field replacement
- 2 General information
- 3 Identifying problems
- 4 Replacing the system motherboard
- 5 The HP p1228 RAID controller
- 6 RAID cache module and SuperCapacitor failures
- 7 Disk enclosures
- 8 Disk replacement
- 9 The QR ISO image
- 10 Support and other resources
- 11 Documentation feedback
7 Disk enclosures
The standard documentation supplied with field replacement parts for the disk enclosures provides
all the required details, with the following important exception.
IMPORTANT: The following parts are not hot-pluggable. The system must be taken offline before
replacing them.
• I/O module (controller board)
• SAS cable from RAID controller card to the disk enclosures
NOTE: Before replacing any I/O modules or SAS cables thoroughly check that all cables are
fully seated and connected.
Powering off the disk enclosure
There are no StoreOnce CLI commands to power off the disk enclosure. Use the Power On/Off
button (1) on the rear of the disk enclosure to power off the unit.
Figure 10 Power button on disk enclosure
After replacing a component
Run the StoreOnce CLI command, hardware show firmware to check that the firmware on
the new component is correct; it will be listed under the storage system details.
Run the StoreOnce CLI command, hardware update firmware, with appropriate parameters
to update it, if necessary. See the HP StoreOnce Backup CLI Reference Guide for more details.
NOTE: You may need a cold reboot to successfully install the new firmware revision.
Powering off the disk enclosure 23