Well, this is a REALLY 300 users production server with 12 VM's running on it, so I definitely won't play with a firmware :) I can easily identify which drive is what by physically looking at it. It's just sad to realize that I cannot trust solaris anymore. I never noticed this problem before because we were always using Seagate drives, so I didn't notice any difference....
In my understanding there are three controllers: C1 - build-in AHCI controller C2 - build-in controller that I needed to reflush C3 - PCI card old sata 1.5 controller- not in use, just ignore it. I guess C2 is the one that gives me hassles. Is there way to retrieve the model from solaris ? Thanks. From: Haudy Kazemi [mailto:kaze0...@umn.edu] Sent: Monday, July 19, 2010 5:00 PM To: Yuri Homchuk Cc: zfs-discuss@opensolaris.org; Cindy Swearingen Subject: Re: [zfs-discuss] Help identify failed drive This is Supermicro Server. I really don't remember controller model, I set it up about 3 years ago. I just remember that I needed to reflush controller firmware to make it work in JBOD mode. Remember, changing controller firmware may affect your ability to access drives. Backup first, as your array is still working although degraded. Then update the firmware of the controller(s), and the firmware of your Seagate 7200.11 drives. Note that the preferred modes are in order of choice: 1.) plain AHCI ports connected to the PCI-E bus (includes most built-in ports on recent motherboards; older boards may have them on the PCI bus) 2.) RAID ports configured as single drive arrays 3.) JBOD ports configured as single drive JBODs 1 is best 2 is preferred over 3 because some controllers have lower performance in JBOD mode or hide features. IDE (PATA) ports with a single master drive on them are approximately 1.5 on the ranking. Putting a second drive on a PATA port is like using a SATA port multiplier: your bandwidth gets reduce and performance can suffer. I run the script you suggested: But it looks like it's still unable to map sd11 and sd12 to an actual c*t*d*... How many different controllers do you have? You'll need to look all this up to sort out the mess. Your logs show you have at least 3 different controllers (c1, c2, and c3) and maybe more for the sd11 and sd12 devices.
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