RE: To use SAME or NOT for High End Storage Setup ?

Wouldn't a SAN negate all of this mess?  Better yet, throw an SVC in
between.
 
I like not having to worry (as much!) about storage.
 
Rich

        -----Original Message-----
        From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Connor McDonald
        Sent: Thursday, May 11, 2006 9:36 AM
        To: Oracle-L
        Subject: Re: To use SAME or NOT for High End Storage Setup ?
        
        


        On 5/11/06, Kevin Closson <kevinc@xxxxxxxxxxxxx> wrote: 

                Well, it is my opinion and experience that with the type
of
                HW you have, you should create a SAME volume of max at
                least 1MB stripe width tht consists of all the LUNS
(each being
                RAID1+0 themselves).
                 


        Maybe volume managers have improved since I last used them in
anger, but my only concern with that approach is the ongoing growth.
That is, you've got (say) 100 disks over which your volumes are all
striped, but then management says "you can have 4 new disks each
week/month/year" for growth.  Such a finanically-imposed policy,
resulted in a nice humming batch of 100-disk-stripe volumes on day 1,
plus an ever increasing number of cruddy 4-disk-stripe volumes, which
you had to fill before management would cough up some dosh for another
4. 
        
        Do vol mgr's nowadays have the ability to "rebalance" the
volumes ala ASM to avoid this?  And if so, presumably you're still up
for a nasty IO spike whilst it occurs ?
        
        Cheers
        Connor 
        -- 
        Connor McDonald
        ===========================
        email: connor_mcdonald@xxxxxxxxx
        web:   http://www.oracledba.co.uk
        
        "Semper in excremento, sole profundum qui variat"

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