Allow iSCSI extents with "NA" size

[The1stImmortal]

Hi Folks,

We've been using NAS4Free in virtualized environments to pass tape drives through to backup servers - we configure either a physical box with a tape drive or pass a SAS/SCSI card through to a virtual NAS4Free instance, then configure iSCSI and add the tape device through manual config file editing to the UI. The (virtual) backup server then mounts the iSCSI tape device and away it goes.

Works brilliantly, actually.

The only downside is that by default NAS4Free ignores configured "disk" devices with size NA, which means you can't by default add the tape drives as extents through the web GUI.

We've been using a basic hack to get around this:

in /usr/local/www/services_iscsitarget_extent_edit.php
change lines 74 & 96 like so:

Code: Select all

              if (strcmp($size, "NA") == 0) continue;

to

Code: Select all

//              if (strcmp($size, "NA") == 0) continue;

If you could see your way to doing something like this in the stock code, or changing the "NA" size test to not apply to "sa" sequential access type devices, something like

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if ((preg_match("/^sa[0-9]/", $name)==0) && (strcmp($size, "NA") == 0)) continue;

, we'd much appreciate it.

[Milkwerm]

Done the above and can see the tape drive (HP ultrium 3) how ever it always fails on verify (and restores) even if it claims to finish the backup successfully.
Definatley falls victim to the SPOUT/SPIN issues with Symantec Backup Exec.