StoreOnce 4700, 4500, 2900 and 2700 RAID configuration
These HPE StoreOnce Backup systems are supplied with their base storage already configured for use.
This storage comprises the disks in the storage system itself. On some models there are dedicated disks
for the operating system; on others the operating system and backup data storage are all on the same
disks.
For instructions on how to connect additional storage by adding a new capacity upgrade enclosure (not
available with the StoreOnce 2900or 2700 Backup system), please see the printed documentation
supplied with the additional storage.
IMPORTANT:
It is very important that failed disks are replaced promptly.
In order to ensure that you are alerted to disk failures ensure that either or both of SNMP traps and
email alerts are configured so that in the event of a disk failure you are notified immediately and can
take action to replace the disks.
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 then ALL data is lost.
Ordering the correct replacement disk for a failed disk
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.
IMPORTANT:
HPE strongly recommends replacing a failed disk with a fresh disk from the factory. Do not
substitute a disk from another RAID set.
It is important to identify whether the disk is in the server 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 15: Disk types
Disk Where used Part number
HP 1TB 7.2K SAS 2.5" SC Hard
Disk Drive
HPE StoreOnce 4900 Backup (2
disks), server unit
653954-001
HP 4TB 6G SAS Hard Disk Drive HPE StoreOnce 4900 Backup
disk enclosures
743405-001
Replacing a hot plug disk in a disk enclosure of a
StoreOnce 4900
StoreOnce 4700, 4500, 2900 and 2700 RAID configuration 53
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