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- Path: sparky!uunet!mcsun!ieunet!ccvax.ucd.ie!ctoomey
- From: ctoomey@ccvax.ucd.ie
- Newsgroups: comp.sys.novell
- Subject: Mirroring under 3.11 Questions [repost]
- Message-ID: <1992Nov17.232424.49912@ccvax.ucd.ie>
- Date: 17 Nov 92 23:24:24 GMT
- Organization: University College Dublin
- Lines: 46
-
- After seeing someone else mention mirroring/duplexing, I have a question with
- regard to `mirroring' to 2 different drive channels under NetWare 3.11 [i.e.
- `duplexing.']
-
- We have a NetWare 3.11 server, with 2 x 535Mb IDE drives, duplexed using the
- NCL America 525 host adapter, that provides 2 seperate IDE channels from one
- 16-bit card (so, you load the disk driver twice, with different Int and Port
- settings.)
-
- For those of you who may have missed the point: you CANNOT `mirror'
- successfully using IDE drive (that is, 2 IDE drives in the Master & Slave
- position on the one channel [say, that Compaq Deskpro server you have with 2 of
- their Conner drives...]) If the master drive fails, then slave is `lost'
- without it's master. If the slave fails, the OS will set the master looking
- for the slave. In either case, your server dies - trust me, I've seen it: the
- server for the catering department of the national airline, no less [probably
- saved some lives, that :-D]
-
- Anyhow, I digress.. I installed said host adapter, and tested the server by
- brute force [unplugging drives], and all worked fine. The Tech. Support
- department in the company that I worked for has a Systempro with the Compaq
- Intelligent Drive Array (the old one, not the new one, pity..) When a drive
- fails, the IDA_MON.NLM broadcasts a message to selected users, groups about the
- drive having failed. What I'm wondering is:
-
- 1) Does there exist a utility to send a broadcast message, on failure of
- a drive under NetWare 3.11's native mirroring/duplexing. In the case
- in question, the server will be locked in a cabinet with database
- server, access server, repeater, UPS etc. etc., and people won't
- normally be viewing the console screen.
-
- 2) Also, is there any way to see what % of the REMIRRoring process is
- complete, as you have to just sit there and guess.
-
- 3) Finally, is there any way to speed up the REMIRRORing process, i.e.
- instead of it doing it all quietly in the `background' is there any
- way to get it to blast ahead, taking as much resources as it
- requires, after I turf off all users.
-
- Questions, questions, questions...
-
- Cheers,
-
- - Colm Toomey -
- B.Sc.(Hons.)
- Graduate Student in Comp. Sci.
-