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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 D2D4324HP D2D4312HP

D2D4106/4112

HP D2D2504HP D2D2502

2500025000250002500025000Max files per share

64064012811296Max Total Open files

per appliance

128128644832Max Open files >24

MB per appliance

Table 5 Maximum number of files G1 products

HP D2D4112HP D2D4004/9HP D2D2504HP D2D2503HP D2D2502

2500025000250002500025000Max files per share

112401124096Max Total Open files

per appliance

4824481632Max 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

HP D2D User Manual

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