Disk replacement
Disk numbering
This chapter describes how to replace individual disks within a RAID set.
NOTE:
For instructions on how to connect additional storage to an HPE StoreOnce 5100 System by adding a
capacity upgrade enclosure (not available with the HPE StoreOnce 3500 Series and HPE StoreOnce
3100 System), see the printed documentation supplied with the additional storage.
1
2
3
4
5
6
7
8
9
10
11
12
Figure 25: Disk numbering in HPE 3500 and 5100 Systems
RAID configuration
All HPE StoreOnce Systems are supplied with their base storage already configured for use.
Table 16: RAID configuration
HPE StoreOnce
model
Number of disks
(and location)
Notes
HPE StoreOnce
3100 System
4 x 2 TB
This model uses a RAID 5 system; operating system and
backup data are stored on the same RAID Set.
RAID 5 allows for a single drive failure without loss of either the
backup data or OS partitions.
HPE StoreOnce
3500 Series
3520 = 12 x 2 TB
3540 =12 x 4 TB
Both systems have two RAID 6 (4+2) sets. The basic capacity is
capped at 50% of the available usable capacity. A software
license is required to use the full capacity. No additional
hardware is required.
No further enclosures may be added.
HPE StoreOnce
5100 System
2 x 900 GB for the
OS in the rear of the
server unit
Plus 12 x 4 TB in
front disk bays
The two OS disks in the rear disk bays are dedicated for use by
the operating system and are in a mirrored configuration, such
that one disk can be lost without the system failing.
The 12 storage disks in the front disk bays are in a RAID 6 (9+2
+ 1 hot spare) set, such that two disks can be lost without loss
of backup data. The hot spare disk is in bay 12.
Up to five additional enclosures may be added to increase the
backup data capacity, also RAID 6 (9+2 + 1 hot spare).
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Disk replacement
