Flexible Emulation (G2 Products Only) - HP D2D Manual

with more than 63 drives will result in not all devices in the library being seen (which may include
the library device). The same limitation could be hit with multiple libraries and fewer drives per
library.
IMPORTANT:
NAS shares that you can configure. For example: if you configure 250 devices on the HP D2D4312
or D2D4324, you will not be able to configure NAS shares. See also
Table 2 Maximum number of libraries and drives per G2 appliance
Max libraries
Max drives per
library
Max devices
per appliance
Max slots per
library
(D2DBS)
NOTE: Apart from the HP D2D2502i, it is possible to exceed the maximum physical limitation
when configuring any of the above models.
Table 3 Maximum number of libraries and drives per G1 appliance
Max libraries
Max drives per
library
Max slots per
library (D2DBS)
NOTE: It is only possible to exceed the maximum physical limitation when configuring the HP
D2D41 12 Backup System.

Flexible emulation (G2 products only)

If supported, the ESL, EML and D2DBS emulations are particularly flexible because they allow you
to configure a large number of drives per library. This has two main benefits:
It allows for more concurrent streams on backups which are throttled due to host application
throughput, such as multi-streamed backups from a database.
It allows for a single library (and therefore dedupe store) to contain similar data from backups
that must run in parallel to increase deduplication ratio.
If using these flexible emulation types, the following factors should also be considered:
Although there are no hard limits on the number of drives that can be configured per library,
there are limits on the total number of devices and shares that can be configured on an
The maximum number of devices per appliance also impacts on the number of
HP D2D2502i HP D2D2504i
4 8
16 32
20 40
96 96
HP D2D2502i HP D2D2503i
4
4
48
HP D2D4106 HP D2D41 12
16 24
64 96
80 120
1024 1024
HP D2D2504i
6 8
1 4
48 48
Flexible emulation.
HP D2D4312 HP D2D4324
50
200
250
4096
HP D2D4004
/4009 HP D2D41 12
16
4
96
Flexible emulation (G2 products only)
50
200
250
4096
24
4
144
9