HP StoreOnce 4430 HP D2D Backup System Concepts guide (EH985-90915, March 2011 - Page 14

Maximum number of users per CIFS share, Maximum number of hosts per NFS share (G2 products only)

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There are also limits on the number of open files greater than the deduplication threshold that are allowed per share and per appliance. These are the files that hold the backed-up data. Backup applications generally create a small number of additional files during a backup job in order to store configuration details and catalog entries. Some of these small files will generally be updated throughout the backup process and, in most instances, these files will be below the deduplication threshold. So, there is also a maximum number of open files that are the same size or smaller than the deduplication threshold that are allowed per appliance. Across the whole HP StoreOnce Backup System the number of simultaneously open files is as follows: Table 4 Maximum number of files G2 products HP D2D2502 Max files per share 25000 Max Total Open files 96 per appliance Max Open files >24 32 MB per appliance HP D2D2504 25000 112 48 HP D2D4106/4112 25000 128 HP D2D4312 25000 640 64 128 HP D2D4324 25000 640 128 Table 5 Maximum number of files G1 products HP D2D2502 Max files per share 25000 Max Total Open files 96 per appliance Max Open files >24 32 MB per appliance HP D2D2503 25000 40 16 HP D2D2504 25000 112 48 HP D2D4004/9 HP D2D4112 25000 25000 40 112 24 48 Maximum number of users per CIFS share The maximum number of users that may be configured when using "user" or AD authentication for access to a CIFS share is 50. This maximum is the total number of users per CIFS server and also the maximum that can be allocated access to any single CIFS share Different users may access single NAS shares simultaneously, however, a file within a share may only be opened by one user at a time. Maximum number of hosts per NFS share (G2 products only) The maximum number of host systems that may be configured to access an NFS share is 50. This maximum is the total number of hosts per NFS server and also the maximum that can be allocated access to any single NAS share. A file within a share may only be opened by one user at a time. 14 NAS shares

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There are also limits on the number of open files greater than the deduplication threshold that are
allowed per share and per appliance. These are the files that hold the backed-up data.
Backup applications generally create a small number of additional files during a backup job in
order to store configuration details and catalog entries. Some of these small files will generally be
updated throughout the backup process and, in most instances, these files will be below the
deduplication threshold. So, there is also a maximum number of open files that are the same size
or smaller than the deduplication threshold that are allowed per appliance.
Across the whole HP StoreOnce Backup System the number of simultaneously open files is as
follows:
Table 4 Maximum number of files G2 products
HP D2D4324
HP D2D4312
HP
D2D4106/4112
HP D2D2504
HP D2D2502
25000
25000
25000
25000
25000
Max files per share
640
640
128
112
96
Max Total Open files
per appliance
128
128
64
48
32
Max Open files >24
MB per appliance
Table 5 Maximum number of files G1 products
HP D2D4112
HP D2D4004/9
HP D2D2504
HP D2D2503
HP D2D2502
25000
25000
25000
25000
25000
Max files per share
112
40
112
40
96
Max Total Open files
per appliance
48
24
48
16
32
Max Open files >24
MB per appliance
Maximum number of users per CIFS share
The maximum number of users that may be configured when using “user” or AD authentication for
access to a CIFS share is 50. This maximum is the total number of users per CIFS server and also
the maximum that can be allocated access to any single CIFS share
Different users may access single NAS shares simultaneously, however, a file within a share may
only be opened by one user at a time.
Maximum number of hosts per NFS share (G2 products only)
The maximum number of host systems that may be configured to access an NFS share is 50.
This maximum is the total number of hosts per NFS server and also the maximum that can be
allocated access to any single NAS share. A file within a share may only be opened by one user
at a time.
14
NAS shares