Hello,
since beginning of this year a tape issue has been arrived my backups.
All my LTO-4 Tapes will not fill any more to the ~ 760 GiByte than
before. Only ~ 510-580 GiByte will be stored on the tapes which is
shown by the list volume command.
The latest volume with > 720 GiByte has to been written on the full-
Backups at 06.01.2020. All tapes after that date will only filled
with 500-600 GiByte.
| 422 | LTO30097 | Full | 1 | 406,660,746,240 | 406 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-08-08 05:30:51 | 454,457,559 |
| 424 | LTO30099 | Full | 1 | 406,697,131,008 | 409 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-08-05 10:38:22 | 454,216,810 |
| 425 | LTO30100 | Full | 1 | 406,700,292,096 | 406 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-08-07 10:33:05 | 454,389,293 |
| 426 | LTO30101 | Full | 1 | 406,729,451,520 | 406 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-08-05 17:08:29 | 454,240,217 |
| 427 | LTO40001 | Full | 1 | 812,703,725,568 | 813 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2018-11-05 10:51:08 | 430,630,376 |
| 428 | LTO40002 | Full | 1 | 812,678,501,376 | 812 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2018-11-06 10:04:59 | 430,714,007 |
| 429 | LTO40003 | Full | 1 | 812,701,596,672 | 813 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2018-10-08 20:22:19 | 428,245,447 |
| 431 | LTO40004 | Full | 1 | 812,714,886,144 | 817 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2018-12-03 12:22:02 | 433,055,030 |
| 432 | LTO40005 | Full | 1 | 812,693,016,576 | 812 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2018-12-04 10:28:39 | 433,134,627 |
| 433 | LTO40006 | Full | 1 | 812,596,248,576 | 815 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-01-07 04:01:50 | 436,049,018 |
| 434 | LTO40007 | Full | 1 | 812,761,721,856 | 812 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-01-07 18:38:57 | 436,101,645 |
| 435 | LTO40016 | Full | 1 | 812,686,758,912 | 813 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-02-04 04:23:58 | 438,469,546 |
| 436 | LTO40008 | Full | 1 | 812,671,534,080 | 812 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-03-04 04:18:59 | 440,888,447 |
| 437 | LTO40009 | Full | 1 | 812,782,107,648 | 812 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-03-04 19:16:49 | 440,942,317 |
| 438 | LTO40010 | Full | 1 | 812,681,017,344 | 813 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-04-08 04:15:13 | 443,912,221 |
| 439 | LTO40011 | Full | 1 | 812,760,173,568 | 813 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-02-04 18:40:48 | 438,520,956 |
| 441 | LTO40014 | Full | 1 | 812,726,369,280 | 812 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-04-08 18:14:51 | 443,962,599 |
| 442 | LTO40012 | Full | 1 | 812,686,500,864 | 813 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-05-06 04:26:15 | 446,332,083 |
| 443 | LTO40013 | Full | 1 | 812,738,562,048 | 812 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-05-06 18:28:43 | 446,382,631 |
| 444 | LTO40015 | Full | 1 | 812,673,921,024 | 812 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-06-03 19:18:29 | 448,804,817 |
| 445 | LTO40017 | Full | 1 | 812,674,050,048 | 812 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-06-04 22:02:59 | 448,901,087 |
| 446 | LTO40018 | Full | 1 | 812,729,723,904 | 813 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-06-03 18:26:33 | 448,801,701 |
| 447 | LTO40019 | Full | 1 | 812,656,180,224 | 813 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-07-09 19:34:41 | 451,916,189 |
| 448 | LTO40020 | Full | 1 | 812,725,788,672 | 813 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-07-08 17:53:41 | 451,823,729 |
| 449 | LTO30102 | Full | 1 | 406,658,681,856 | 406 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-10-10 14:23:28 | 459,932,716 |
| 450 | LTO30103 | Full | 1 | 406,603,588,608 | 407 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-11-04 01:38:20 | 462,046,808 |
| 451 | LTO30104 | Full | 1 | 406,075,880,448 | 406 |
473,040,000 | 1 | 0 | 0 | LTO-3 | 2 | 0 |
2019-11-04 12:51:29 | 462,087,197 |
| 452 | LTO30105 | Full | 1 | 406,723,193,856 | 406 |
473,040,000 | 1 | 12 | 1 | LTO-3 | 2 | 0 |
2019-11-05 19:35:29 | 462,197,837 |
| 453 | LTO30106 | Full | 1 | 400,497,527,808 | 400 |
473,040,000 | 1 | 16 | 1 | LTO-3 | 2 | 0 |
2019-11-06 09:13:57 | 462,246,945 |
| 454 | LTO40022 | Full | 1 | 812,717,724,672 | 813 |
473,040,000 | 1 | 11 | 1 | LTO-3 | 2 | 0 |
2019-12-02 17:19:02 | 464,522,450 |
| 455 | LTO40023 | Full | 1 | 782,473,273,344 | 784 |
473,040,000 | 1 | 13 | 1 | LTO-3 | 2 | 0 |
2020-01-06 08:08:39 | 467,513,427 |
| 460 | LTO40026 | Full | 1 | 628,718,920,704 | 628 |
473,040,000 | 1 | 9 | 1 | LTO-3 | 2 | 0 |
2020-01-06 19:55:00 | 467,555,808 |
| 461 | LTO40025 | Full | 1 | 628,959,808,512 | 629 |
473,040,000 | 1 | 17 | 1 | LTO-3 | 2 | 0 |
2020-01-07 16:41:52 | 467,630,620 |
| 462 | LTO40027 | Full | 1 | 629,233,274,880 | 630 |
473,040,000 | 1 | 5 | 1 | LTO-3 | 2 | 0 |
2020-02-03 12:04:15 | 469,946,763 |
| 463 | LTO40028 | Full | 1 | 579,429,107,712 | 579 |
473,040,000 | 1 | 19 | 1 | LTO-3 | 2 | 0 |
2020-02-03 22:48:11 | 469,985,399 |
| 464 | LTO40031 | Full | 1 | 552,112,210,944 | 552 |
473,040,000 | 1 | 6 | 1 | LTO-3 | 2 | 0 |
2020-02-04 21:54:52 | 470,068,600 |
| 465 | LTO40029 | Full | 1 | 548,973,702,144 | 551 |
473,040,000 | 1 | 20 | 1 | LTO-3 | 2 | 0 |
2020-03-02 09:06:23 | 472,355,291 |
| 467 | LTO40032 | Full | 1 | 554,964,544,512 | 555 |
473,040,000 | 1 | 18 | 1 | LTO-3 | 2 | 0 |
2020-03-02 21:06:34 | 472,398,502 |
| 468 | LTO40033 | Full | 1 | 558,934,032,384 | 558 |
473,040,000 | 1 | 1 | 1 | LTO-3 | 2 | 0 |
2020-03-03 15:39:49 | 472,465,297 |
| 469 | LTO40034 | Append | 1 | 475,099,978,752 | 476 |
473,040,000 | 1 | 4 | 1 | LTO-3 | 2 | 0 |
2020-03-04 09:53:10 | 472,530,898 |
Do not wonder, there are also older LTO-3 Tapes used which could be identified
by
the label name.
My first idea was a configuration change between the full backup ~ 2019-12-02
and 2020-01-06
but the latest change was for a file-storage in 09-2019.
My HW has not been changed. It is still a Dell 40 slot machine with 2 LTO-4
drives
as before.
I upgraded bacula last year, but already in 07.2019 so it could be not have had
an effect. In 02.2020 I upgraded to 9.x version.
My third idea was that the drives has to been started to fill the tapes in
fixed block
mode and/or compression has been turned on. (I use client
compression+encryption, so
compression on the drives could be a negative effect, so it is normally turned
off).
To check it today I stopped the sd- loaded a older tape on sg0 and a never tape
on sg1
(nst0 against nst1) but there is no relevant difference found in the status
information's:
root@backup:~# diff <(tapeinfo -f /dev/sg0) <(tapeinfo -f /dev/sg1)
6c6
< SerialNumber: 'HU19145705'
---
> SerialNumber: 'HU1914570A'
root@backup:~# diff <(mt -f /dev/nst0 status) <(mt -f /dev/nst1 status)
<empty result)
root@backup:~# tapeinfo -f /dev/sg0
Product Type: Tape Drive
Vendor ID: 'HP '
Product ID: 'Ultrium 4-SCSI '
Revision: 'V67B'
Attached Changer API: No
SerialNumber: 'HU19145705'
MinBlock: 1
MaxBlock: 16777215
SCSI ID: 0
SCSI LUN: 0
Ready: yes
BufferedMode: yes
Medium Type: Not Loaded
Density Code: 0x46
BlockSize: 0
DataCompEnabled: no
DataCompCapable: yes
DataDeCompEnabled: yes
CompType: 0x1
DeCompType: 0x1
BOP: yes
Block Position: 0
Partition 0 Remaining Kbytes: 800226
Partition 0 Size in Kbytes: 800226
ActivePartition: 0
EarlyWarningSize: 0
NumPartitions: 0
MaxPartitions: 0
root@backup:~# mt -f /dev/nst0 status
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x46 (LTO-4).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN
Here the relevant lines of bacula-sd.conf:
190 Autochanger {
191 Name = "FibreCAT TX48 S2"
192 Device = "HP Ultrium 4-1"
193 Device = "HP Ultrium 4-2"
194 Changer Command = "/etc/bacula/scripts/mtx-changer %c %o %S %a %d"
195 Changer Device =
/dev/tape/by-id/scsi-1FUJITSU_ETERNUS_LT_S2_TXDE65404204_LL0
196 }
197
198 Device {
199 Name = "HP Ultrium 4-1"
200 Drive Index = 0
201 Media Type = "LTO-3"
202 #Media Group = "LTO-2","LTO-3","LTO-4"
203 #Media Options {
204 # LTO-2 = ReadOnly
205 # LTO-3 = ReadWrite
206 # LTO-4 = ReadWrite
207 #}
208 Archive Device = "/dev/tape/by-id/scsi-32001000e11129ae5-nst"
209 AutomaticMount = yes; # when device opened, read it
210 AlwaysOpen = yes;
211 RemovableMedia = yes;
212 RandomAccess = no;
213 AutoChanger = yes
214 # Don't want to use it as automatic (not ok)
215 #Autoselect = no
216 # Enable the Alert command only if you have the mtx package loaded
217 Alert Command = "sh -c 'tapeinfo -f %c |grep TapeAlert|cat'"
218 Spool Directory = "/tmp"
219 Offline On Unmount = No
220 Requires Mount = Yes
221 Mount Command = "mt -f %a load"
222 # Unmount Command = "mt -f %a eject"
223 Maximum Spool Size = 17179869184
224 Maximum Job Spool Size = 17179869184
225 Maximum Changer Wait = 3600
226 Maximum Rewind Wait = 3600
227 Maximum Open Wait = 3600
228 }
229
230 Device {
231 Name = "HP Ultrium 4-2"
232 Drive Index = 1
233 Media Type = "LTO-3"
234 #Media Group = "LTO-2","LTO-3","LTO-4"
235 #Media Options {
236 # LTO-2 = ReadOnly
237 # LTO-3 = ReadWrite
238 # LTO-4 = ReadWrite
239 #}
240 Archive Device = "/dev/tape/by-id/scsi-32004000e11129ae5-nst"
241 AutomaticMount = yes; # when device opened, read it
242 AlwaysOpen = yes;
243 RemovableMedia = yes;
244 RandomAccess = no;
245 AutoChanger = yes
246 # Don't want to use it as automatic (not ok)
247 #Autoselect = no
248 # Enable the Alert command only if you have the mtx package loaded
249 Alert Command = "sh -c 'tapeinfo -f %c |grep TapeAlert|cat'"
250 Spool Directory = "/tmp"
251 Offline On Unmount = No
252 Requires Mount = Yes
253 Mount Command = "mt -f %a load"
254 # Unmount Command = "mt -f %a eject"
255 Maximum Spool Size = 17179869184
256 Maximum Job Spool Size = 17179869184
257 Maximum Changer Wait = 3600
258 Maximum Rewind Wait = 3600
259 Maximum Open Wait = 3600
260 }
261
I changed the max spool size from 2GiByte to 16GiByte so larger
chunks will be stored on tape to minimize that tape will becomes idle
due to transfers.
Todo: Check a backup so the drive 2 will be used instead of drive 1.
Maybe since 2020 the other drive is used.
(How can I check it which drive index has been used before and since
2020 ? Is there a field which shows me the drive index in the db?)
Thank you for your ideas.
Cheers,
Pierre
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