HP Store Once 2700, 4500 and 4700 Maintenance and Service Guide

operating system are lost and a “Quick Restore” of the appliance OS will be required before the
unit can be used again.
Ordering the correct replacement disk for a failed disk
IMPORTANT: HP strongly recommends replacing a failed disk with a fresh disk from the factory.
Do not substitute a disk from another RAID set.
In the event of a disk failure on the HP StoreOnce 4500 or 4700 Backup system, it is important
to identify whether the disk is in the head unit or the attached shelf, because different disks are
used in the two locations and the carriers are different.
Always quote the serial number and product number for the enclosure that contains the failed disk
so that support can replace the correct part.
Table 10 Disk types
Part numberWhere usedDisk
653954-001HP StoreOnce 4700 Backup (2 disks),
head server unit
HP 1TB 7.2K SAS 2.5" SC Hard Disk
Drive
653948-001HP StoreOnce 4500 (12 disks) and
2700 (4 disks)
HP 2TB 7.2K SAS 3.5" SC Hard Disk
Drive
743403–001HP StoreOnce 24TB (12 disks)
Capacity Upgrade Kits
HP 2TB 6G SAS MDL Hard Disk Drive
743405–001HP StoreOnce 48TB (12 disks)
Capacity Upgrade Kits
SPS-DRV HD 4TB 6G 7.2K 3.5 SAS
MDL STOR
Identifying when a disk fails
WARNING! It is important to replace a failed or predictive failed disks as soon as possible.
Multiple disk failures within the same array will result in complete data loss.
Note that ALL enclosures of storage must be working for the system to operate; if the RAID fails on
any one enclosure due to exceeding the maximum amount of failed disks in a pool then ALL data
is lost. In the case of the HP StoreOnce 2700 Backup system, if more than one disk fails then the
data and operating system are lost and a “Quick Restore” of the appliance OS will be required
before the unit can be used again.
Using the Management console
If you have configured recipients for SNMP traps or email alerts, they will be notified of a disk
failure. You can also use the GUI as follows:
• Go to the appropriate Hardware page to get the details for the device: Hardware — Storage
— Storage Cluster — Drive Enclosure — Drive.
The disk fault LED (amber) will also be illuminated on the disk carrier.
• You can use the Beacon LED On button on this page to turn the LED on the front of the disk
on, which makes it easier to identify and replace. The disk fault LED (amber) will also be
illuminated on the disk carrier.
Ordering the correct replacement disk for a failed disk 33