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Replacing Faulty Mirror Drive

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HASAGO

Vendor
Sep 28, 2005
248
AU
If I have a scenario where a Mirror drive fails in a RAID system can I simply put in a blank 20GB drive and the operating system and customer data is then exactly copied across? Or does the new drive need to also contain the Operating system for that particular BCM software release? If this is the case what is stopping me buying a standard Maxtor drive from the local shop rather than Nortel? Any suggestions?
 
20GB drives are now becoming harder to get. I would imagine that a Maxtor 40GB or 80GB drive would be suitable as well?
 
I Have cloned a 20gig to a larger Maxtor drive. You have a lot of wasted space, but you can actually tell the difference using a drive with an 8 meg cache and 7200rpm.
The BCM is actually faster. On my upgrades I also made sure that I had 512 meg.

I am not sure if I trust Maxtor any longer after they dropped their warranty from 5 years to 1 year.

NARSBARS
 
One potential problem with using a larger drive is that future upgrades used to fail - the upgrade checks for a 20GB drive, and if it sees a larger drive, it says that the upgrade requires a 20GB drive to continue. Doesn't matter if it's 40GB with only 20GB partitioned either.

This was true for 2.5 to 3.0 upgrades - not sure if it was ever "fixed", but I've stuck with 20GB drives for my customers since.

20GB drives are out there, just getting very difficult to come across.

 
If you clone the drive first, you only clone the 20 gig, leaving the rest of the drive unused and unrecognized by the drive size check.



NARSBARS
 
Problem I had was the BIOS reported it as a 40GB. Again, this was three years ago on an old 2.5 system (BCM 1000). Haven't tried it since, so it may no longer be an issue.
 
I have done this on an old 2.5 myself. I never thought to check the bios report on the drive.

I worked using a 120 gig maxtor and an old 40 gig.
I hope this works out for you. I thought the software upgrade process checked for drive size.

NARSBARS
 
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