Sorry, bit-'o-confusion there.

I'm using raidz2 with a 12 disk pool, and have been happy since some of the
performance improvements around snv_86.
As always, YMMV.

Andrew Hettinger
http://Prominic.NET  ||  [EMAIL PROTECTED]
Tel:  866.339.3169 (toll free) -or- +1.217.356.2888 x.110 (int'l)
Fax: 866.372.3356 (toll free) -or- +1.217.356.3356            (int'l)
Mobile direct: 1.217.621.2540
CompTIA A+, CompTIA Network+, MCP


                                                                       
             mike                                                      
             <[EMAIL PROTECTED]                                         
             m>                                                         To
             Sent by:                  "Andrew M. Hettinger"           
             storage-discuss-b         <[EMAIL PROTECTED]>       
             [EMAIL PROTECTED]                                          cc
             s.org                     "[EMAIL PROTECTED]
                                       s.org"                          
                                       <[EMAIL PROTECTED]
             08/21/2008 03:55          s.org>,                         
             PM                        "[email protected]"
                                       <[email protected]>
                                                                   Subject
                                       Re: [storage-discuss] Supermicro
                                       AOC-SAT2-MV8 PCI-X   vs.        
                                       AOC-USAS-L8i PCI-e              
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       




That was actually me talking about svm :)

What would be the ideal zfs layout for 15 disks if I want 13 disks worth of
space usable? I hear 5-6 disk zpools are the largest recommended due to
peformance or something. I'd be willing to go with n-2 for "dual parity"
essentially.

On Aug 21, 2008, at 1:39 PM, "Andrew M. Hettinger" <[EMAIL PROTECTED]
> wrote:



      Hey Will,

      I would use a zfs mirror (in fact, i do in production), rather then a
      SVM mirror. It's even to the point now where the installer will make
      the mirror for you (atleast on nevada, don't know about indana)

      Also, to respond to Ross, there was a vary good post here a while
      back indicating that adding "set sata:sata_auto_online=1"
      to /etc/system made the device come online as soon as the port was
      activated, I have been much happier with my raidz2 array since adding
      that.

      Andrew Hettinger
      http://Prominic.NET. || [EMAIL PROTECTED]
      Tel: 866.339.3169 (toll free) -or- +1.217.356.2888 x.110 (int'l)
      Fax: 866.372.3356 (toll free) -or- +1.217.356.3356 (int'l)
      Mobile direct: 1.217.621.2540
      CompTIA A+, CompTIA Network+, MCP

      <graycol.gif>mike ---08/21/2008 02:53:37 PM---On 8/21/08, Will
      Murnane <[EMAIL PROTECTED]> wrote:



                                                                       
                         mike <?                                       
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                         Sent by:                                      
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                                                                 "Will 
                         08/21/2008 02:52 PM                     Murnane"
                                                                 <     
                                                                 will.murn
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                                                                   Subject
                                                                 <ecblank.
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                                                                 Re:   
                                                                 [storage-
                                                                 discuss]
                                                                 Supermicr
                                                                 o     
                                                                 AOC-SAT2-
                                                                 MV8 PCI-X
                                                                 vs.   
                                                                 AOC-USAS-
                                                                 L8i PCI-e
                                                                       
                                                                       
                                             <ecblank.gif>             
                                                       <ecblank.gif>   
                                                                       
                                                                       



      On 8/21/08, Will Murnane <[EMAIL PROTECTED]> wrote:

      > I have a Corsair TX750 that is quiet, reviews well [1] and is only
      > about $120 now.  It claims to produce 60 amps on the 12V rail,
      which
      > is enough to do 15 drives.

      Wow, thanks for the quick reply. I will look to see the dBA for that
      PSU. If it's low enough, I'll go with that one.

      I'll be using an Athlon 64 that has lower power requirements, a mobo,
      a PSU and a boot drive. So total will be 16 drives + CPU/mobo/RAM +
      PCI-X card + optical (as needed) + fans. I have this mobo/CPU/RAM
      combo already at home now running snv_94 + ZFS and it works well and
      is pretty quiet. Current config:

      Case: Antec P182
      Mobo: Asus M2N-SLI Deluxe Aud/2GbLan/SATA/RAID/1394 ATX
      CPU: Athlon64 X2 Dual Core 4450e 2.3GHz 2x512k 45w Retail
      RAM: 4GB(2x2GB) DDR2 PC6400 800MHz Matched Pair Kingston
      Optical: LiteOn 20A4P 20x IDE DVD+/-RW
      Video: Asus GeForce 8500GT 512MB TV-Out/DVI Silent Edition
      Boot Drive: Seagate 320GB 16MB cache IDE
      PSU: CoolMax PS-V500 500W
      6x Seagate 1TB 32MB cache SATA2
      CPU Cooler: Zalman CNPS9700 19.5dBA heatsink/fan

      However I only have 7 drives total in that box if I recall + optical.
      I didn't figure I needed to shop for a special-needs PSU for that
      one.
      However for these larger disk quantities I wanted to make sure I
      could
      do it all :)

      This time around, I can use a SATA boot disk (or two, if the PSU will
      support it and mirror it using SVM?) since I will have the extra
      onboard SATA ports. The current config I used only onboard SATA
      ports,
      so I had to go back to IDE for my boot disk.

      I plan on using the same config above (Mobo/RAM/CPU/Video/Optical/CPU
      Cooler possibly too)
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