[nflug] NFS noac option

[Justin Bennett]

It would hang in an inti 0 unmounting the nfs file systems.
In that situation there was open files all over from mail, samba (form 
Pc's that dies) ect. It would hang at unmounting file systems until the 
UPS drained.

Justin Bennett
Network Administrator
Dynabrade, Inc.
8989 Sheridan Dr.
Clarence, NY 14031
 



Darin Perusich wrote:
> if you're using automount then you shouldn't need soft mounts, you 
> should be able to force unmount if your nfs server goes down.
>
> Justin Bennett wrote:
>> Ok, I'm not sure, It's one of those things it may have been an issue 
>> 3 years ago, not sure why I have it. I know at one point I switched 
>> to soft mounts, to help unmount the shares in the even of a UPS 
>> triggered shutdown.
>>
>> Justin Bennett
>> Network Administrator
>> Dynabrade, Inc.
>> 8989 Sheridan Dr.
>> Clarence, NY 14031
>>
>>
>>
>>
>> Darin Perusich wrote:
>>> i would recommend that you turn off noac, is there a reason that you 
>>> are using it? seeing that it is not a default option unless you 
>>> truly need it i'd turn it off.
>>>
>>> there is generally no reason to use anything other then the default 
>>> nfs mount options. the defaults are the optimal options.
>>>
>>> Justin Bennett wrote:
>>>> For all you NFS junkies out there,
>>>>
>>>>   I've got a Redhat V 3ES NFS server and several Redhat 2.1ES 
>>>> clients. I've got NIS and Automounter mounting NFS shares on one of 
>>>> the 2.1 boxes which then acts as a samba server to the PC's. I've 
>>>> got the auto.x files mounting the shares with a 'noac' option. I've 
>>>> noticed this slows my write times down to a crawl. a 38MB files 
>>>> takes 2 minutes to write with the 'noac' option, and 6 seconds 
>>>> without it. Do I really need to use the 'noac' option? I really 
>>>> only have one active client (the samba server) the other clients do 
>>>> a backup of the NFS box once a night, and our database does an 
>>>> export there nightly. Would I cause myself greif by getting rid of 
>>>> the 'noac' option? what it I just set 'actimeo=3' or something like 
>>>> that?
>>>>
>>>> Thanks
>>>> Justin
>>>>
>>>>
>>>
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