If I understand you correctly, the total reserved LUN space will be 190G after growing the LUN. If you have any snapshots on the volume, or snap reserve set, then the additional 20GB could very well put you into a situation where you won't have enough space to increase the LUN and still guarantee 100% fractional reserve.

----- Original Message ----- From: "Raj Patel" phigmov@gmail.com To: toasters@mathworks.com Sent: Sunday, December 02, 2007 7:16 PM Subject: Can't expand SnapDrive for Windows drive

Just trying to expand a 20Gb lun used for SQL 2005 logs - Its contained within a 400Gb volume (I've allocated 140 for the database, 20 for logs and 10 for temp db). The vol is sized at well over twice the space requirements to allow for snaps. I just want to expand the log lun to 40Gb.

Server is w2k3 sp1 SnapDrive 4.2.1 and OnTap 7.0.5 on a fas 270. SnapManager SQL is installed for SQL 2005.

Overall SAN free space is about 80Gb.

From within Windows the error SnapDrive gives is 'Unable to Expand Disk / Error there is not enough free space'

Anything obvious I'm missing ?

Thanks in advance,

Raj.