RE: ftape errors

Britt Ethan Houser <[email protected]> 08 Apr 2002 20:29:24 -0400
Newsgroups gmane.linux.tape
Message-ID <[email protected]>
The tape drive is in a Dual Pentium-II 300 Mhz with 512Mb ram.  I tried
lowering the rate limit to 2000 (which is reported to be the bare
minimum for ditto max drives) but it didn't make any difference.  I
tried doing a small backup (b/c large ones were taking FOREVER) and it
turned out ok.  Maybe I can just ignore and be patient with large
backups?

britt

On Sat, 2002-04-06 at 14:22, Kenneth M. Howlett wrote:
> 
> 
> [email protected] (Britt Ethan Houser) said:
> >Mar 30 08:24:26 tecumseh kernel: [246] 0    ftape-write.c 
> >(ftape_write_segment_Rsmp_4b13c842) - write error, retry 1 (215).
> >Mar 30 08:24:45 tecumseh kernel: [250] 0       ftape-rw.c 
> >(ftape_start_tape) - increased threshold because of excessive overrun 
> >errors (284).
> 
> These errors mean ftape is working, but not working well.
> 
> Probably your backups are ok, but maybe not. The only way to
> find out for sure if your backups are ok is to do a compare,
> or to restore to a temporary directory and compare the restored
> files to the original files.
> 
> I think the problem is that you do not have enough cpu speed
> and/or memory to run your tape drive. If you want to throw money
> at the problem, buy a faster computer and more memory. For a
> cheap solution, try using a smaller rate limit, which will force
> the tape drive to run slower. Or try to free up memory and cpu
> cycles by stopping all programs, daemons, and services which are
> not required by ftape; turn off networking, xwindows, etc;
> unmount all unused drives, shut down all other terminals, etc.
> If you are really desperate, turn off atd, crond, gpm, syslogd,
> klogd, etc. Most linux distributions are configured so that
> you can shut down most things by switching to runlevel 1.
> Also you could try unfragmenting memory; I think
> there is a memory unfragmenter included in the ftape tools.
> 
-- 
I therefore, a prisoner for the Lord, beg you to lead a life worthy of
the
calling to which you have been called, with all lowliness and meekness,
with
patience, forbearing one another in love, eager to maintain the unity of
the
Spirit in the bond of peace.  Eph 4:1-3

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