From: cbaker@GOODYEAR.COM
Date: Wed Feb 11 2004 - 15:14:59 EST
No JFS errors in the errpt on the P655. (Actually, at the time of the last
few failed file copies, there have been no errpt entries at all.)
Christopher M. Baker
Senior Technical Support Analyst
DSE/TCO
Goodyear Tire and Rubber Company
=================================================
Contains Confidential and/or Proprietary Information.
May not be copied or disseminated without the expressed
written consent of The Goodyear Tire & Rubber Company.
=================================================
pSeries AIX Geek
<aixgeek@YAHOO.C To: aix-l@Princeton.EDU
OM> cc: (bcc: Chris Baker/NA/GDYR)
Sent by: IBM AIX Subject: Re: NFS file truncating
Discussion List
<aix-l@Princeton
.EDU>
02/11/2004 12:21
PM
Please respond
to IBM AIX
Discussion List
Are you getting JFS fragmentation errors in the error
report? On the 4MB boundary, you go from using single
indirection to double indirection and if you don't
have enough CONTIGUOUS free space, you'll get this
issue.
Look in your error report for fragmentation errors,
and look into running defragfs.
- pAG
--- cbaker@GOODYEAR.COM wrote:
> Folks,
>
> We have a P655 running as a NFS server. Has been
> running for months
> without any problems. But, about a week ago, one of
> our applications
> started failing when copying files into one of the
> NFS mounted filesystems.
>
> Sometime it works and some times it only partially
> copies.
>
> Strange thing is, many times when it fails, the
> files that do not
> completely copy are all the exact same size when
> they fail. That size is
> 4,194,304 bytes.
> In other words, we copy multiple files, the first
> one is less than 4 MBytes
> and it copies fine. The next three files are bigger
> than 4 MB, some as big
> as 600 MB, but each copy gives an I/O error then
> moves on to the next file.
> When it is all done, the three larger files are each
> only 4,194,304 bytes
> big.
>
>
> DETAILS:
> ========
>
> 1) The copy is really a "rcp" running on an HP J6000
> (HP-UX). It is remote
> copying a file from a third box ( a Tru64 system)
> back to itself. But it
> is copying to a filesystem that is the NFS mounted
> filesystem off of the
> P655.
>
> 2) We see no errors on the Tru64 box, the HP-J6000
> or the P655.
>
> 3) The files being copied are mainly binary files.
>
> 4) The copy is done using a rcp that is part of LSF
> (Load Share Facility).
> It seems to fail with this error:
>
> "copyFile: write(802816) failed, No such
> file or directory."
>
> This is followed by: "lsrcp: main()
> failed, try rcp...."
>
> Then it appears to try to use "rcp": and that
> fails also with an
> error of: "I/O error"
>
> 5) Strange thing is, the copy (lsrcp) worked just
> seconds before on a small
> ASCII log file (the first file) from and to the same
> directories??
>
> 6) This problem started about the same time we
> increased the load on the
> NFS server. But, system does not seem to be
> anywhere near loaded.
>
> 7) The filesystem in question resides on EMC
> Clariion disks that are
> attached via fiber channel to the P655.
>
> 8) AIX 5.1 ML04 on NFS server.
>
>
> Any help, suggestion or sly remarks would be greatly
> appreciated.
>
> Thanks,
>
> Christopher M. Baker
> Senior Technical Support Analyst
> DSE/TCO
> Goodyear Tire and Rubber Company
>
> =================================================
> Contains Confidential and/or Proprietary
> Information.
> May not be copied or disseminated without the
> expressed
> written consent of The Goodyear Tire & Rubber
> Company.
> =================================================
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