X-Git-Url: https://git.gag.com/?a=blobdiff_plain;ds=sidebyside;f=docs%2Fzftape.txt;h=7d84ce665dc9aa83fec97c47b61545ab18414e98;hb=2863534a8b974b72a13427a439227d2b2ca61d80;hp=cdcbf2bf1b9f8e522ab3399ebebde973f8a4b929;hpb=c9bb64dd8260123d77b6f7be0f051f450b193e66;p=debian%2Famanda diff --git a/docs/zftape.txt b/docs/zftape.txt index cdcbf2b..7d84ce6 100644 --- a/docs/zftape.txt +++ b/docs/zftape.txt @@ -1,10 +1,10 @@ -Chapter 33. Usage of floppy tape drives on Linux +Chapter 35. Usage of floppy tape drives on Linux Prev Part VI. Historical files Next ------------------------------------------------------------------------------- -Chapter 33. Usage of floppy tape drives on Linux +Chapter 35. Usage of floppy tape drives on Linux Albrecht Gebhardt @@ -16,16 +16,11 @@ Stefan G. Weichinger XML-conversion,Updates AMANDA Core Team - -Note - -Refer to http://www.amanda.org/docs/zftape.html for the current version of this -document. -AMANDA now supports the ftape driver version 3.04d (see http://www- +Amanda now supports the ftape driver version 3.04d (see http://www- math.math.rwth-aachen.de/~LBFM/claus/ftape ). It adjusts the blocksize automatically to 32k and supports QIC volume tables. It uses only one open() call for writing backups to one tape, so the "busy"- -lamp of the drive will be on all the time. (With normal AMANDA code it would be +lamp of the drive will be on all the time. (With normal Amanda code it would be off in pauses between two files written to tape.) For volume table support you have to get libvtblc first (available at ftp:// pc02-stat.sci.uni-klu.ac.at/pub/Linux/libvtblc.) This library contains the @@ -55,7 +50,7 @@ like (listed with vtblc utility from ftape): % 4 VTBL alpha sda6 0 00:00:00 03/15/98 1907 8092 11.45 % - 5 VTBL AMANDA Tape End 01:45:15 03/16/98 8093 8094 0.00 + 5 VTBL Amanda Tape End 01:45:15 03/16/98 8093 8094 0.00 % With lvtblc, currently available with the libvtblc library, you can list the @@ -72,17 +67,17 @@ vtblc): 2 VTBL gamma sda2 0 00:00:00 03/15/98 3 VTBL alpha sda2 0 00:00:00 03/15/98 4 VTBL alpha sda6 0 00:00:00 03/15/98 - 5 VTBL AMANDA Tape End 01:45:15 03/16/98 + 5 VTBL Amanda Tape End 01:45:15 03/16/98 -Note on datestamps: volume 0 (AMANDA label): reflects the time of starting the -backup volume i (backup files): AMANDA datestamps of the backup files last +Note on datestamps: volume 0 (Amanda label): reflects the time of starting the +backup volume i (backup files): Amanda datestamps of the backup files last volume (end marker) : reflects the time of finishing the backup I tested this on a Linux machine (P90 / 96Mb RAM / 256 Mb swap) with two other clients (Linux / WfW) using * Linux Kernel 2.0.33, * ftape 3.04d, -* AMANDA 2.4.0b6p4 +* Amanda 2.4.0b6p4 with an internal Iomega Ditto 3200 (TR-3) drive attached to an Iomega Ditto Dash controller (at 2000 Kbps). My tapetype follows: @@ -102,8 +97,13 @@ Filemarks are not written to the tape (they are written to the header segment and use there 128 byte), so their size could even be 0. But a tape segment takes at least 29 kb (+3 kb ecc-code = 32 kb), so in the worst case an eof will waste 29 kb. + +Note + +Refer to http://www.amanda.org/docs/zftape.html for the current version of this +document. ------------------------------------------------------------------------------- Prev Up Next -Chapter 32. Y2K Compliancy Home Part VII. References +Chapter 34. Y2K Compliancy Home Part VII. Appendixes