When trying to add a library or single drive, the processes appear to hang and eventually come back with “Error: No reply received to list available drive request from Core plugin”
NetVault couldn’t add library due to the fact that by design ANY and all device scan launches also SVTL processes to look for raw devices. If a machine has too many disks mounted (SAN) then these SVTL processes take too long to scan and timeout after 5 minutes, so the general scan fails because these processes failed; hence NetVault never gets to scan all the hardware buses .
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If NDMP plugin is also installed on the server/client, with some unreachable filers added, the NDMP processes take too long to login and scan and timeout after 5 minutes, so the general scan fails because these processes failed; hence NetVault never gets to scan all the hardware buses.
Workaround
As long as the device we are scanning for is not a RAW device to be used in a SVTL or NDMP Tape library, we can use the following workaround.
On the client we are scanning, stop NetVault services, edit …/NetVault/config/programs.cfg as follows
find [SVTL Device Manager] stanza
- remove "device=true" under it
find [SVTL Library Manager] stanza
- remove "device=true" under it
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If the issue is determined to be NDMP plugin, stop NetVault services, edit …/NetVault/config/programs.cfg as follows
find [Ndmp Device Manager] stanza
- remove "device=true" under it
find [Ndmp Library Manager] stanza
- remove "device=true" under it
Start NetVault services add the device.
Leave the …/NetVault/config/programs.cfg in this edited state unless you plan to Add a SVTL or NDMP Tape library to the client.
