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тАО06-14-2001 12:43 PM
тАО06-14-2001 12:43 PM
Hi guys....
here's an easy one for you... I'm running an HPUX 10.20 box with a 12H AutoRaid array module... when I issue the following command: arraydsp -a , in the first lines I get something that is called ARRAYTYPE, is this the RAID level indicator.. if not how could I get it....
I've a doubt, so if you can light me up!!!
regards
Jonathan
here's an easy one for you... I'm running an HPUX 10.20 box with a 12H AutoRaid array module... when I issue the following command: arraydsp -a
I've a doubt, so if you can light me up!!!
regards
Jonathan
Solved! Go to Solution.
3 REPLIES 3
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тАО06-14-2001 02:50 PM
тАО06-14-2001 02:50 PM
Re: RAID level???
Hello Jonathan,
Not really. Because its an AutoRaid array, the data is dynamically moving between RAID 0/1 and RAID 5, depending on the amount of free space in the array and how often the data is accessed. Anyway, my 12H says ARRAYTYPE = 3 and I know this array does not support RAID3.
To see how much free space there is, use:
arraydsp -i
and examine the bottom of the listing. However, knowing what RAID level your data is in at any particular moment might not mean very much two seconds later.
Good Luck,
Curt
Not really. Because its an AutoRaid array, the data is dynamically moving between RAID 0/1 and RAID 5, depending on the amount of free space in the array and how often the data is accessed. Anyway, my 12H says ARRAYTYPE = 3 and I know this array does not support RAID3.
To see how much free space there is, use:
arraydsp -i
and examine the bottom of the listing. However, knowing what RAID level your data is in at any particular moment might not mean very much two seconds later.
Good Luck,
Curt
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тАО06-15-2001 03:07 AM
тАО06-15-2001 03:07 AM
Re: RAID level???
Curt is right.
That is why you selected teh autoraid afterall isn't it?
You're not concerned about what raid level your data is in.
If you want to keep performance relatively okay, you should try to keep the array in as much RAID 1/0 as possible. The only way to controll this from an administration point of view is to leave lots of disk space on the autoraid 'unallocated' for data... this 'free space' will then be used for mirroring raid.
Later,
Bill
That is why you selected teh autoraid afterall isn't it?
You're not concerned about what raid level your data is in.
If you want to keep performance relatively okay, you should try to keep the array in as much RAID 1/0 as possible. The only way to controll this from an administration point of view is to leave lots of disk space on the autoraid 'unallocated' for data... this 'free space' will then be used for mirroring raid.
Later,
Bill
It works for me (tm)
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тАО06-15-2001 04:33 AM
тАО06-15-2001 04:33 AM
Solution
The AutoRaid makes the decision as to the RAID level of your Data Automaticly. The only control you have over this is the amount of unalloacted space. You Must have enough Unallocated space to cover the Write working set or performance will be impacted.
See, Understanding Write Working Set at: http://us-support3.external.hp.com/cki/bin/doc.pl/sid=99e78d2304c6e8ed85/screen=ckiDisplayDocument?docId=200000054888454
See, Understanding Write Working Set at: http://us-support3.external.hp.com/cki/bin/doc.pl/sid=99e78d2304c6e8ed85/screen=ckiDisplayDocument?docId=200000054888454
Plan for the future and tomorrow will take care of itself.
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