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SFT II + SFT III possible ?

Posted on 2000-03-10
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Last Modified: 2006-11-17
we had a task to install SFT II + SFT III
in novell 4.11 server installation.

problem
--------

we installed a mirror set between two HDD within
a system and our client want extra security that
they purcheased an additional  server with
same config.

then we break the mirror set and put SFT III
with MSL card and fiber optic cable.(with one
hdd in an io engine)

what the client want now is they want the SFT III
setting PLUS mirror set(SFT II)(HDD) within every IO engine
(what they told me they want a mirror set of HDD
in a server and another one with HDD mirrored
and between this two system  they want SFT III.
obviously with four HDD in this SFT III server.

it is possible or not ?
if it is possible how to do this ?
if we did that what is the case if mirror set
within a system HDD fail (SFT II )
how we have to  recover the failure of SFT II
when it is inbuild with SFT III.

need clear  answer.
expecting sugg. from you.......

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Question by:moorthy_kulumani
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Expert Comment

by:sverre
ID: 2611047
Hmm, seems strange to mirror a mirrorset! How much cpu power and io power will this consume? IF (and i don´t think it is) it is possible, what is the purpuse with having four identical disksets?
My personal suggestion is to not use SFTIII, since Novell doesn´t support this anymore. We used to run a Nw4.11 in SFTIII, but when we splited it up we got stability and more power of the server. And we could use the second
IO engine to something productive!
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Accepted Solution

by:
apadua earned 75 total points
ID: 2638327
Since your client doesn't mind paying for his security (SFT3 isn't very cheap), what you could do is purchase (if you don't already have) RAID SCSI cards, and implement disk mirroring in hardware. Your NW4.11 would see a regular, un-mirrored disk, when in reality it would be mirrored. Then you could set up them both, disk mirroring and SFT-3.

Good luck,


Andre
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