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Full Discussion: Recover failed system disk
Operating Systems Solaris Recover failed system disk Post 302966370 by jj5406 on Thursday 11th of February 2016 10:23:17 AM
Old 02-11-2016
"quite a bit of experience with Solaris" is probably a big overstatement. I have done system administration only out of necessity for the past 20 years on various *nix systems. So I have experience over many years, but it is infrequent experience. The main sysadmin around here has not dealt with Solaris for years. So while I remember a few things, google is my friend.

Running StorMan, I see the claim that the raid controller is "Sun STK RAID INT", but that's about all the info I seem to be able find without rebooting - which I guess I will be doing soon. My main worry right now is that if I swap out a disk (a single-volume disk, not one from the RAID) that the controller may lose knowledge of it. However, I have THAT data backed up, so it's not a big deal if I lose it. And I guess if I can actually mount and read the old system disk in the freed up slot, I should be able to repeat that process when I put back whatever disk I pulled out to make room.

I've already run fsck -y a number of times on the bad disk, so whatever damage that may have done is already done.

I know what to do in general, but I am trying to avoid a misstep that will damage the disk further and prevent me from getting as much info as I can off of it.

Thanks.

-J
 

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diskd(1)						      General Commands Manual							  diskd(1)

Name
       diskd - disk daemon; wait for disk to be inserted

Note
       This  manpage has been automatically generated from fdutils's texinfo documentation.  However, this process is only approximative, and some
       items, such as cross-references, footnotes and indices are lost in this translation process.  Indeed, these items have no appropriate  rep-
       resentation  in	the  manpage  format.  Moreover, only the items specific to each command have been translated, and the general information
       about fdutils has been dropped in the manpage version.  Thus I strongly advise you to use the original texinfo doc.

       *      To generate a printable copy from the texinfo doc, run the following commands:

		     ./configure; make dvi; dvips fdutils.dvi

       *      To generate a HTML copy,	run:

		     ./configure; make html

	      A pre-made HTML can be found at: `http://www.tux.org/pub/knaff/fdutils'

       *      To generate an info copy (browsable using emacs' info mode), run:

		     ./configure; make info

       The texinfo doc looks most pretty when printed or as HTML.  Indeed, in the info version certain examples are difficult to read due  to  the
       quoting conventions used in info.

Description
       The diskd command has the following syntax:

	  diskd [-d drive] [-i interval] [-e command]

       Diskd  waits for a disk to be inserted into a given drive, and then either executes the command or exits. This program can be used to auto-
       matically mount a disk as soon as it is inserted.

Warning
       This program works by switching the motor on for a very short interval, and then seeking to track -1. This might  damage  hardware  in  the
       long  run.  Amigas,  which  also  use these techniques, are known for having problems with their disk drives no longer spinning up properly
       after a few month of usage.

Options
       -d drive
	      Selects the drive to observe for disk insertion. By default, drive 0 (/dev/fd0) is observed.

       -i interval
	      Selects the polling interval. The interval is given in tenths of seconds. Default is 10 (one second).

       -e command
	      Gives the command to be executed when a disk is inserted. If no command is given the program simply exits.  Typically,  the  command
	      mounts the disk. It can be a shell scripts which probes for several filesystems and disk geometries until it succeeds.

Bugs
       *      Automatic  unmounting  cannot yet be handled. It is indeed not enough to scan for disk removal, because when the disk is removed, it
	      is already too late: There might be some buffers needing flushing.  However, the fdmountd program  allows  automatic  unmounting	by
	      using the SYNC mount options, which switches off write buffering (see section  fdmount).

       *      The drive motor is running all the time, and on some computers, the drive led flickers at each time the drive is polled.

See Also
       Fdutils' texinfo doc

fdutils-5.5							      03Mar05								  diskd(1)
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