Re: NFS mount on AIX 5.2

From: Steve Bassler (bassmstr.delete.this.to.reply_at_adelphia.net)
Date: 12/05/03 

Date: Fri, 05 Dec 2003 03:45:31 GMT

On Thu, 4 Dec 2003 08:20:16 +0100, Andreas Schulze <b79xan@gmx.de> wrote:

> "Steve Bassler" <bassmstr.delete.this.to.reply@adelphia.net> schrieb im
> Newsbeitrag news:oprzmwddcgw038d5@news...
>> On Wed, 3 Dec 2003 16:19:56 +0100, Andreas Schulze <b79xan@gmx.de>
>> wrote:
>>
>> > "Steve Bassler" <sbassle@alleghenyenergy.com> schrieb im Newsbeitrag
>> > news:9f303a71.0312021054.352b9715@posting.google.com...
>> >
>> >> I have just installed my first AIX 5.2 system. I have an NFS-mounted
>> >> common directory which I would like to mount at system boot time.
>> The
>> >> /etc/filesystems entry reads:
>> >>
>> >> /Common:
>> >> dev = "/Common"
>> >> vfs = nfs
>> >> nodename = NFSServer
>> >> mount = true
>> >> options = ro,bg,soft,intr,retry=5,retrans=3
>> >> account = false
>> >>
>> >> This is exactly what we use for AIX 4.3.3 and 5.1 and it works fine,
>> >> but I cannot get it to work with 5.2. When I boot, the filesystem
>> >> does not mount. After the boot, I can mount it manually with just a
>> >> "mount /Common" command.
>> >>
>> >> Am I doing something wrong? Did AIX 5.2 change something?
>> >>
>> >> Thanks,
>> >> Steve
>> >>
>> >
>> > Hallo Steve,
>> >
>> > try
>> > # alog -ot boot
>> > to see what is happening during boot.
>> >
>> > Regards,
>> > Andreas
>> >
>>
>> Hello Andreas,
>>
>> I did, and it simply says something like "Performing all automatic
>> mounts." (I don't have it here in front of me, so I'm not sure of the
>> exact wording.) But it showed nothing unusual at all.
>>
>> Thanks,
>> Steve
>
> Hallo Steve,
>
> I see. Question: why do you limit the number of retries for the mount to
> five? Default is 10000 IIRC. So if there should be some sort of timing
> problem you might simply try remove the limitation on retries first and
> watch what's happening then. With intr and bg set, this should not
> result in problems. If increasing the number of retries works (i.e. the
> fs is mounted) you are on the right track. Then you might reduce the
> value to 5000, then 2500 ... you are getting the idea.
>
> HTH,
> Andreas
>

Hi Andreas,

Thanks for the ideas. We chose the retries value at random, because we
needed to limit the impact on production machines if the remote host
became unavailable. (It did once, and we took a lot of heat when systems
became unresponsive.) I'll try with larger values and see what happens.

Again, thanks!
Steve