Re: [Networker] SAN storage node

Teresa Biehler wrote:

o Is anyone using SAN storage nodes?

- 6 SAN Nodes
- 1 Library Compaq ESL9198
- 6 DLT8000 Drives
- shared between the Backup Server and 6 SAP Server as SAN Node
- Backup Server 2x700Mhz 640MB RAM
- ~1.4TB Data to Backup (1TB Full Backup every day)

o How difficult was the installation?  What problems did you have during
set up?

- a SAN Node is a normal StorageNode, but much cheaper because of he can
  only backup himself
- Bus Resets because of buggy SCSI2Fibre Router(Compaq MDR) firmware
- the NT SAN Nodes have made no problems
- the W2k SAN Nodes must have turned off the Removable Storage Manager
- On W2k Plug&P(l|r)ay is sometimes annoying, e.g. with new Drive
  Firmware You have new Drives on W2k

o What type library do you have?

- 1 Library Compaq ESL9198

o What has your experience been with this configuration?

- it works, but you can achive the same result, if you use a faster
  backup server and have a seperate backup giga network

o What problems have you seen?

- see 2nd point

o Has the performance been what you expected?

- the SAP productive System (4x700Mhz Xeon 4GB RAM) feeds 5 drives with
  upto 50MB/s over one 1Gbit Fibre Card (50MB/s from the RAID System and
  50MB/s to the Tapedrives)
- if You use 2Gbit or to different Fibre Cards for the RAID and the
  Tapes You can achive even more
- the Load on the System is around 5-20% for the Backup Processes
- we use only the hardware compression of the drives


i hope it helps.
f_x

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