Re: RAID question

["Al Barsa, Jr." <barsa2@xxxxxxx>]

At 04:01 PM 9/4/98 -0400, you wrote:
>Al Barsa, Jr. wrote:
>> 
>> I respectfully disagree.  I originally purchased an S10 with 5 4 GB drives.
>>  The parity was equally spread over all 5 drives.  I then purchased another
>> 5 4GB drives, and it set up another parity set!  (So I was now wasting two
>> full drives for redundancy.)  When I meekly and mildly expressed my
>> disappointment to Rochester (No, not the man that used to polish Mr.
>> Benny's car.) I was informed that if I added less than four drives at a
>> time, they would have been added to the same parity set, but four or more
>> went into their own parity set.  To recoup the lost space, I had to end
>> RAID and restart it.  The system then put the parity on the first eight
>> drives, so I only lost one for redundancy.
>> 
>> Al
>
>  Al,
>
>  I just installed an S20 Wednesday with 20 drives.  (Configured for
>another 10 to be migrated in from the machine it is replacing.)  The
>drives came from Rochester in a set of 10 (8 striped plus 2) a set of 6
>(4 striped plus 2) and a set of 4 (striped). I think this to be a wierd
>setup but it was explained to me by the CE that there would be three
>raid sets with 10 each when done. (Why not 10(8+2) for each set I don't
>know). I don't believe there has ever been the capability to have other
>than 4 or 8 drives containing the RAID striping.
>
I will attempt to research this when I'm back from Roch.

Al




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Al Barsa, Jr. - Account for Midrange-L
Barsa Consulting, LLC.  
400 > 390

Phone:  914-251-9400
Fax:    914-251-9406


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