Re: Solaris9 and AIX5

From: Marcelino Mata (mmata@MULTIMATIC.COM)
Date: Mon Jan 19 2004 - 09:40:00 EST


I have never had a problem with the Solaris automounting the CDROM. The
process which mounts the CDROM is called "vold". Unlike AIX, Solaris
automatically mounts CDROMs. The only problem I have ever had with vold was
a AIX consultant loading an application on Solaris. As he had no knowledge
of the automatic mount process, he managed to hang the process by not using
it correctly and then using root mount commands to workaround is lack of
knowledge. Fighting the vold process always makes things worse not better.
IMHO, vold is one of the things I miss on AIX. There is nothing wrong with
modifying files under /etc as long as you know what your doing. As most AIX
people use smit/smitty they are shielded from modifying /etc files. As AIX
does not really use /etc files anyway, it is not good training ground to be
a Solaris admin. Someone using a Linux distro like Slackware would be more
comfortable with Solaris since Slackware provides minimal GUI tools (like
time I checked, many years ago)

Vold automount explained :

- CDROM are mount /cdrom/<volume name>
- symbolic link called /cdrom/cdrom0 to /cdrom/<volume name> is always
created.
- specify /cdrom/cdrom0 whenever applications request cdrom.

In my case, our AIX consultant used /cdrom/<volume name> and then he could
not mount the 2nd CDROM since he could not release the mount point since it
is controlled by vold.

Marcelino

>-----Original Message-----
>From: Theresa Sarver [mailto:tsarver@IFMC.SDPS.ORG]
>Sent: Friday, January 16, 2004 3:48 PM
>To: aix-l@Princeton.EDU
>Subject: Re: Solaris9 and AIX5
>
>
>Thanks everyone for the responses.
>
>Well, believe it or not they have had to reboot several times
>to clear up CDROM mounting issues --- where it appears that a
>phantom process has the CDROM hung up. All joking aside I
>have not seen them mount a cdrom in under 8 minutes --- and we
>have done A LOT of application installs in the past 3 months!
>I have seen them reboot to change the IPA on a NIC which kinda
>suprised me. They also rebooted to fix [communication?]
>problems with the L700 Tape library and the 6800. I've seen
>them reboot several other times for things that I wouldn't
>have done on AIX, but I'm drawing a blank right now. ?
>
>I mainly grew concerned when I heard them talking about not
>ever wanting to manually edit "anything under /etc"
>(specifically the passwd file) -- else risk the server not
>[re]booting. ????
>
>Thanks again for the insight, and I'll try not to be quite so biased!!
>Theresa
>
>>>> RyeR@SCHNEIDER.COM 01/16/04 02:21PM >>>
>What types of reboot's have you had to do?
>
>Working in a mixed shop, the main difference I see between
>Solaris and AIX
>is configuring devices [mainly luns/disk devices]. What I
>mean by this
>configuring a jni or emmulex HBA card and then having to do a
>configuration
>reboot to build the devices. Also Solaris devfsadm command doesn't
>clean-up devices as well as advertised, so we end up rebooting
>to clear out
>devices [mainly SAN storage] after we removed them from the system.
>
>Ralph
>
>
>
> Theresa Sarver
> <tsarver@IFMC.SDP To:
>aix-l@Princeton.EDU
> S.ORG> cc:
> Sent by: IBM AIX Fax to:
> Discussion List Subject:
>Solaris9 and AIX5
> <aix-l@Princeton.
> EDU>
>
>
> 01/16/2004 01:01
> PM
> Please respond to
> IBM AIX
> Discussion List
>
>
>
>
>
>
>Hi All;
>
>My company is an AIX shop; however, SUN has a Solaris 9 lab setup in an
>attempt to [try to] sell us some hardware...the one thing I've
>noticed is
>that there is an awful lot of reboots required for Solaris (in
>comparison
>to AIX)...does anyone know off the top of their head what all requires
>reboots on SUN?
>
>It also appears (as an outsider looking in) that the amount of
>sys_admin_time on Solaris would be greatly increased. Is this
>an accurate
>presumption or is my *bias* overpowering my vision! :)
>
>
>Thanks for your info!
>Theresa
>



This archive was generated by hypermail 2.1.7 : Wed Apr 09 2008 - 22:17:31 EDT