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- Newsgroups: comp.sys.hp
- Path: sparky!uunet!usc!rpi!batcomputer!munnari.oz.au!hp9000.csc.cuhk.hk!a866700
- From: a866700@hp9000.csc.cuhk.hk (Wong Siu To)
- Subject: Pls help: HP Disk Array vs SDS
- Message-ID: <1992Sep7.032343.13368@hp9000.csc.cuhk.hk>
- Organization: The Chinese University of Hong Kong
- Date: Mon, 7 Sep 1992 03:23:43 GMT
- Lines: 36
-
- Hi all,
-
- I'm now setting up a campus email system which requires a large spool
- directory (/usr/mail), about 4 - 5 GB. Our local HP support suggests
- that we can use the Disk Array solution (hardware) which provides data
- protection, recovery, and disk striping across several disks. We wonder
- whether the filesystem size limit of 2 GB is a problem, but our HP
- support said that that should be okay. We then buy a Disk Array (6000
- series) which consists
- of 5 x 1.3GB disks. When we received the manual, we sure that it can't
- overcome the 2GB fs limit !! :( "Fortunately", we found that there's a
- command "sdsadmin" which can create filesystems with max. size of 4GB.
- It implements software disk striping, with the help of separate disks of
- similar disk types.
- We thus use the **logical** disks of the Disk Array in the sdsadmin
- command and wish to create a filesystem of 4GB. However, it fails with
- the error message "....disk type hp_C2425D_noreserve not found" (I
- forget the exact wordings ...). It seems that it searches the
- /etc/disktab before setting up the disk array. I think there's no disk
- information entry in /etc/disktab for the logical unit of a hardware
- Disk Array.
-
- Would anyone pls advise how can I solve this problem, and if there's any
- "incompatability" between hardware Disk Array and Software Disk Striping
- (SDS) ?
-
- Thanks in advance !
-
- Regards,
-
- St Wong
- --
- ----------------------------------------------------------------------------
- ST Wong BITNET: A866700@CUCSC.BITNET
- Computer Services Centre Internet: a866700@hp9000.csc.cuhk.hk
- The Chinese Univsersity of Hong Kong st@csc.mgate1.cuhk.hk
-