Re: [zfs-discuss] Periodic ZFS disk accesses by ksh93... / was: Re: [dtrace-discuss] periodic ZFS disk accesses

2008-03-02 Thread Bill Shannon
Roland Mainz wrote: > Bill Shannon wrote: >> Roland Mainz wrote: >>> What's the exact filename and how often are the accesses ? Is this an >>> interactive shell or is this a script (an interactive shell session will >>> do periodical lookups for things like the MAIL*-variables (see ksh(1) >>> and k

Re: [zfs-discuss] Periodic ZFS disk accesses by ksh93... / was: Re: [dtrace-discuss] periodic ZFS disk accesses

2008-03-02 Thread Roland Mainz
Bill Shannon wrote: > Roland Mainz wrote: > > What's the exact filename and how often are the accesses ? Is this an > > interactive shell or is this a script (an interactive shell session will > > do periodical lookups for things like the MAIL*-variables (see ksh(1) > > and ksh93(1) manual pages) w

Re: [zfs-discuss] Periodic ZFS disk accesses by ksh93... / was: Re: [dtrace-discuss] periodic ZFS disk accesses

2008-03-02 Thread Bill Shannon
Roland Mainz wrote: > What's the exact filename and how often are the accesses ? Is this an > interactive shell or is this a script (an interactive shell session will > do periodical lookups for things like the MAIL*-variables (see ksh(1) > and ksh93(1) manual pages) while scripts may do random stu

[zfs-discuss] Periodic ZFS disk accesses by ksh93... / was: Re: [dtrace-discuss] periodic ZFS disk accesses

2008-03-02 Thread Roland Mainz
Bill Shannon wrote: > Jonathan Edwards wrote: > > On Mar 1, 2008, at 4:14 PM, Bill Shannon wrote: > >> Ok, that's much better! At least I'm getting output when I touch files > >> on zfs. However, even though zpool iostat is reporting activity, the > >> above program isn't showing any file accesse

Re: [zfs-discuss] periodic ZFS disk accesses

2008-03-01 Thread Bob Friesenhahn
On Sat, 1 Mar 2008, Bill Shannon wrote: > > I think I've reached the limit of what I can do remotely. Now I have > to repeat all these experiments when I'm sitting next to the disk and > can actually hear it and see if the correlation remains. Then, it may > be time to dig into the ksh93 code and

Re: [zfs-discuss] periodic ZFS disk accesses

2008-03-01 Thread Bill Shannon
Jonathan Edwards wrote: > > On Mar 1, 2008, at 4:14 PM, Bill Shannon wrote: >> Ok, that's much better! At least I'm getting output when I touch files >> on zfs. However, even though zpool iostat is reporting activity, the >> above program isn't showing any file accesses when the system is idle.

Re: [zfs-discuss] periodic ZFS disk accesses

2008-03-01 Thread Jonathan Edwards
On Mar 1, 2008, at 4:14 PM, Bill Shannon wrote: > Ok, that's much better! At least I'm getting output when I touch > files > on zfs. However, even though zpool iostat is reporting activity, the > above program isn't showing any file accesses when the system is idle. > > Any ideas? assuming th

Re: [zfs-discuss] periodic ZFS disk accesses

2008-03-01 Thread Bill Shannon
Jonathan Edwards wrote: > > On Mar 1, 2008, at 3:41 AM, Bill Shannon wrote: >> Running just plain "iosnoop" shows accesses to lots of files, but none >> on my zfs disk. Using "iosnoop -d c1t1d0" or "iosnoop -m >> /export/home/shannon" >> shows nothing at all. I tried /usr/demo/dtrace/iosnoop.d

Re: [zfs-discuss] periodic ZFS disk accesses

2008-03-01 Thread Bill Shannon
Bob Friesenhahn wrote: > On Sat, 1 Mar 2008, Bill Shannon wrote: >> >> Curiously, when I came in to my office this morning, I didn't hear my >> disk making noise. It wasn't until after I unlocked the screen that >> the noise started, which makes my think it must be something related >> to my deskt

Re: [zfs-discuss] periodic ZFS disk accesses

2008-03-01 Thread Jonathan Edwards
On Mar 1, 2008, at 3:41 AM, Bill Shannon wrote: > Running just plain "iosnoop" shows accesses to lots of files, but none > on my zfs disk. Using "iosnoop -d c1t1d0" or "iosnoop -m /export/ > home/shannon" > shows nothing at all. I tried /usr/demo/dtrace/iosnoop.d too, still > nothing. hi Bil

Re: [zfs-discuss] periodic ZFS disk accesses

2008-03-01 Thread Bob Friesenhahn
On Sat, 1 Mar 2008, Bill Shannon wrote: > > Curiously, when I came in to my office this morning, I didn't hear my > disk making noise. It wasn't until after I unlocked the screen that > the noise started, which makes my think it must be something related > to my desktop. Gnome periodically checks

Re: [zfs-discuss] periodic ZFS disk accesses

2008-03-01 Thread Tomas Ă–gren
On 01 March, 2008 - Bill Shannon sent me these 4,2K bytes: > I recently converted my home directory to zfs on an external disk drive. > Approximately every three seconds I can hear the disk being accessed, > even if I'm doing nothing. The noise is driving me crazy! Just a guess.. Something looki

[zfs-discuss] periodic ZFS disk accesses

2008-03-01 Thread Bill Shannon
I recently converted my home directory to zfs on an external disk drive. Approximately every three seconds I can hear the disk being accessed, even if I'm doing nothing. The noise is driving me crazy! I tried using dtrace to find out what process might be accessing the disk. I used the iosnoop p