On Thu, Sep 18, 2008 at 11:23:36PM +0000, A Darren Dunham wrote:
Background: Directly attached LTO3 drive. Backups are normally nice and speedy (50+ MB/s). ndmpd probe suggests that it's read 15GB of data in over 24 hours. *way* too slow.
I guess I was just looking for a read technique when I asked. I didn't really think the system details were important, so I forgot to include them. But in case they are...
Filer: FAS6070 OnTap: 7.2.2
slot 0: FC Host Adapter 0g (Dual-channel, QLogic 2322 rev. 3, 64-bit, L-port, <UP>) Firmware rev: 3.3.21 Host Loop Id: 7 FC Node Name: 5:00a:098600:011457 Cacheline size: 16 FC Packet size: 2048 SRAM parity: Yes External GBIC: No Link Data Rate: 2 Gbit 111: Tape: IBM ULTRIUM-TD3 64D0 slot 0: FC Host Adapter 0h (Dual-channel, QLogic 2322 rev. 3, 64-bit, L-port, <UP>) Firmware rev: 3.3.21 Host Loop Id: 7 FC Node Name: 5:00a:098700:011457 Cacheline size: 16 FC Packet size: 2048 SRAM parity: Yes External GBIC: No Link Data Rate: 2 Gbit 111: Tape: IBM ULTRIUM-TD3 64D0