Re: tcopy tape to tape WAY too slow
In the last episode (Mar 30), Jesse Guardiani said: Having lotsa trouble getting this working. I'm using this command line: cptp -hm 1 of=- | cptp -hm 0 if=- (tried it without the -h too) And getting this output: After 0 tape marks, after 0 blocks: tape image format error on standard input And this error in /var/log/messages: Mar 30 18:23:24 billmax /kernel: (sa1:ahc0:0:2:0): 64512-byte tape record bigger than supplied buffer Aha. Also edit tp.h, and change TP_MAX_BLK_SIZE to 131072 (the max FreeBSD supports, I believe) -- Dan Nelson [EMAIL PROTECTED] ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
tcopy tape to tape WAY too slow
Howdy list, I'm copying 35G/90G AIT-1 tapes on FreeBSD from tape drive to tape drive (nrsa0 and nrsa1) using the tcopy -c command and it's taking WAY too long. Over 12 hours including the verification process. (not sure exactly how long as it finished when I was sleeping) Is there something I can do to speed this up? -- Jesse Guardiani, Systems Administrator WingNET Internet Services, P.O. Box 2605 // Cleveland, TN 37320-2605 423-559-LINK (v) 423-559-5145 (f) http://www.wingnet.net ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: tcopy tape to tape WAY too slow
In the last episode (Mar 30), Jesse Guardiani said: I'm copying 35G/90G AIT-1 tapes on FreeBSD from tape drive to tape drive (nrsa0 and nrsa1) using the tcopy -c command and it's taking WAY too long. Over 12 hours including the verification process. (not sure exactly how long as it finished when I was sleeping) Is there something I can do to speed this up? I don't think tcopy is double-buffered; if you only have one file on that tape and know the blocksize, dd if=/dev/nrsa0 bs=##k | dd of=/dev/nrsa0 bs=##k should be much faster. If you have multiple files or unknown blocksizes, the cptp command from the MAG package at http://www.cs.vu.nl/~dick/mag.html will preserve filemark and blocksize info through pipes, so you could do a cptp | cptp pipe. -- Dan Nelson [EMAIL PROTECTED] ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: tcopy tape to tape WAY too slow
On Tuesday 30 March 2004 10:39, you wrote: In the last episode (Mar 30), Jesse Guardiani said: I'm copying 35G/90G AIT-1 tapes on FreeBSD from tape drive to tape drive (nrsa0 and nrsa1) using the tcopy -c command and it's taking WAY too long. Over 12 hours including the verification process. (not sure exactly how long as it finished when I was sleeping) Is there something I can do to speed this up? I don't think tcopy is double-buffered; if you only have one file on that tape and know the blocksize, dd if=/dev/nrsa0 bs=##k | dd of=/dev/nrsa0 bs=##k should be much faster. No, I've got between 70 and 90 files per tape. If you have multiple files or unknown blocksizes, the cptp command from the MAG package at http://www.cs.vu.nl/~dick/mag.html will preserve filemark and blocksize info through pipes, so you could do a cptp | cptp pipe. That looks promising. Do you have special build instructions for this package under FreeBSD 4.x? I'm getting the following error on 'gmake' or 'make': - gcc -ansi -DUNIX -O -s -c tperr.c tperr.c:18: initializer element is not constant *** Error code 1 Stop in /usr/local/src/mag. Exit 1 - -- Jesse Guardiani, Systems Administrator WingNET Internet Services, P.O. Box 2605 // Cleveland, TN 37320-2605 423-559-LINK (v) 423-559-5145 (f) http://www.wingnet.net ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: tcopy tape to tape WAY too slow
In the last episode (Mar 30), Jesse Guardiani said: On Tuesday 30 March 2004 10:39, you wrote: If you have multiple files or unknown blocksizes, the cptp command from the MAG package at http://www.cs.vu.nl/~dick/mag.html will preserve filemark and blocksize info through pipes, so you could do a cptp | cptp pipe. That looks promising. Do you have special build instructions for this package under FreeBSD 4.x? I'm getting the following error on 'gmake' or 'make': gcc -ansi -DUNIX -O -s -c tperr.c tperr.c:18: initializer element is not constant *** Error code 1 Bug in the program (stderr cannot be used to initialize static variables). Replace line 18 with #define tperr stderr and it'll build. It looks like you may also want to edit tploc.h, line 49, and replace those two 8's with %d's. Then something like cptp -m 0 of=- | cptp -m 1 if=- should copy from rmt0 to rmt1 with a little bit of pipe buffering inbetween. Adding team or buffer (both in ports/misc) inbetween will add even more buffering. -- Dan Nelson [EMAIL PROTECTED] ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: tcopy tape to tape WAY too slow
On Tuesday 30 March 2004 15:27, Dan Nelson wrote: In the last episode (Mar 30), Jesse Guardiani said: On Tuesday 30 March 2004 10:39, you wrote: If you have multiple files or unknown blocksizes, the cptp command from the MAG package at http://www.cs.vu.nl/~dick/mag.html will preserve filemark and blocksize info through pipes, so you could do a cptp | cptp pipe. That looks promising. Do you have special build instructions for this package under FreeBSD 4.x? I'm getting the following error on 'gmake' or 'make': gcc -ansi -DUNIX -O -s -c tperr.c tperr.c:18: initializer element is not constant *** Error code 1 Bug in the program (stderr cannot be used to initialize static variables). Replace line 18 with #define tperr stderr and it'll build. It looks like you may also want to edit tploc.h, line 49, and replace those two 8's with %d's. Then something like cptp -m 0 of=- | cptp -m 1 if=- should copy from rmt0 to rmt1 with a little bit of pipe buffering inbetween. Adding team or buffer (both in ports/misc) inbetween will add even more buffering. Having lotsa trouble getting this working. I'm using this command line: cptp -hm 1 of=- | cptp -hm 0 if=- (tried it without the -h too) And getting this output: After 0 tape marks, after 0 blocks: tape image format error on standard input And this error in /var/log/messages: Mar 30 18:23:24 billmax /kernel: (sa1:ahc0:0:2:0): 64512-byte tape record bigger than supplied buffer Mar 30 18:23:24 billmax /kernel: (sa1:ahc0:0:2:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM command to clear this state. Any ideas? -- Jesse Guardiani, Systems Administrator WingNET Internet Services, P.O. Box 2605 // Cleveland, TN 37320-2605 423-559-LINK (v) 423-559-5145 (f) http://www.wingnet.net ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
