Re: Auto-flush during amdump?
that's an interesting idea.. maybe it would be better to make it part of the planner.. planner sees dumps in the holding disk, adds that count to the plan for the current day, and will flush it along with the current disks. this would save a lot of time for me as well. just add to amanda.conf: autoflush true -ben On Tue, 18 Jun 2002, Colin Henein wrote: Greetings Amanda types. I've been using amanda for a few years now, so I'm pretty sure this can't be done. I thought I'd ask anyway, perhaps it will stimulate discussion of this as a potential new feature. I'm interested in having amanda flush any backups that are in the holding area as a part of the nightly amdump run. Our server is co-located with our ISP. While they are pretty good at changing our tapes, they do occasionally mess up, and we often don't catch them before the backup runs. What happens is that our backups wind up in the holding area, as you'd expect. The problem is that it's a multi-step headache to call the ISP, explain the problem, get the correct tape loaded, hang up; an amflush is then performed; then we have to call the ISP again, and get them to put the next night's tape in. Now, when you run amflush at the command line, it offers to put all the held backups onto one tape for you. What would really make life easier for us is if amdump essentially could be instructed to do the same thing... Take all the backups from the holding area, and put them on the tape with the results of the current amdump run. Can anyone think of a way to do this with the current Amanda? Would this be a popular addition if it appeared in a new version? Could this be put on a feature-request list? Colin
samba multiple exclude
i'm using amanda backup 2.4.3b3, and am setup with smbclient to backup some NT4 and 2K workstations.. I'm running into the problem that smbclient is returning errors for open files, such as pagefile.sys, and a few other files that I want to ignore in backups. since smbclient doesn't allow for 'exclude list filename', i'm stuck with 'exclude file file' smbclient appears to allow for multiple files at the end of the command, but when I put this in my dumptype: exclude file pagefile.sys WINNT/Profiles WINNT/system32/config all backups fail with the message like: staff //client1/C$ lev 0 FAILED [badly formatted response from staff] staff //client2/C$ lev 0 FAILED [badly formatted response from staff] I think this is something that will have to get fixed with code in amanda, or is there a proper (not documented currently) way of passing multiple files to a samba client? -ben
Re: Multiple Backup
read the amanda faq.. http://amanda.sourceforge.net/fom-serve/cache/29.html no, you can not store more than one backup session per tape.. that's dangerous. (cheap backup programs let you do it, well.. because they're cheap) -ben On Tue, 11 Jun 2002, M. Cao wrote: Hi, I am first time install amanda. Please help me with these questions. Can I have more than one backup on single tape ? If so, If the first backup completed and I remove the tape from tape drive. Is 2nd backup on the same tape overwrite the first one ? How do reuse the tape if already label ? Thanks Minh
Re: exec command before backup ?
you could change the cron entry on the amanda server to remotely execute the mysqldumps with ssh. #!/bin/sh LIST_OF_HOSTS=foo bar baz for host in $LIST_OF_HOSTS; do ssh $host /usr/local/sbin/do-mysql-dump.sh done /usr/sbin/amdump DailySet1 -ben On Mon, 10 Jun 2002, Fabien SEISEN wrote: Hi, I would like to execute some commands on a amanda-client before a backup. Can amanda do this ? (i need to do a mysqldump and only backup the dump, not data in use) -- Fabien Seisen [EMAIL PROTECTED] dakol@opn GnuPG ID 1024D/112189D8
Re: amcheck, client problem: [could not access... : Permissiondenied]
it sounds like amcheck is getting run with the wrong permissions.. can you check the permissions, and paste it for both amcheck and amdump? -ben On Mon, 10 Jun 2002, Alessandro Prete wrote: I had to split a big partition of a Linux fileserver into several part due to the limit of Amanda backing up filesystem bigger than the tape size. I simply have done it specifying some subdirectories in the disklist file; amdump is working well, excluding the following amcheck error: - amcheck result: Amanda Tape Server Host Check - Server check took 156.049 seconds Amanda Backup Client Hosts Check ERROR: hal: [could not access /home3/ale/Storage/segmentoC (/home3/ale/Storage/segmentoC): Permission denied] ERROR: hal: [could not access /home3/ale/Storage/segmentoB (/home3/ale/Storage/segmentoB): Permission denied] ERROR: hal: [could not access /home3/ale/Storage/segmentoA (/home3/ale/Storage/segmentoA): Permission denied] ERROR: hal: [could not access /home3/ale/Privato (/home3/ale/Privato): Permission denied] ERROR: hal: [could not access /home3/ale/Lavoro (/home3/ale/Lavoro): Permission denied] . (brought to you by Amanda 2.4.2p2) - amcheck result Thank you in advance for any reply. Best regards, Alessandro Prete ICT manager Polytechnic of Turin, branch of Alessandria / CdCMP phone: +39 (0)131-22.93.40 eMail: [EMAIL PROTECTED] CdCMP website: http://www.polial.polito.it/cdc --- For every complex problem there is a simple solution. And it is wrong. ---
Re: Travan 10/20GB ATAPI (IDE) use with Amanda and amlabel
I'm not sure why the travan tape is not working properly.. you may want to upgrade to Redhat 7.3 for both driver issues, and security reasons.. can I say that again.. UPGRADE :) as far as your system instability, the mdrecovery process is a program that monitors raid disks. it's only needed (if i remember right) when you have a raid disk fail, and it's required to do re-mirroring, or parity rebuilds. as to why it locks up at that point, is a difficult question.. it may just be stalled.. how long have you let it go before powering down the machine? it sounds to me like you have something odd going in the kernel.. if I remember right, 7.1 comes with either a 2.2, or a really old 2.4 kernel.. I suggest getting a copy of 7.3 from someplace like www.cheapbytes.com for $5, and upgrading the system. -ben On Mon, 10 Jun 2002, Trevor Fraser wrote: Hi All, I've recently intalled a Travan 20GB tape drive ATAPI (IDE) (M/N: STT32A), and I'm running Linux 7.1 with Amanda 2.4.2p2. I'm yet to get it to work. We are able to see the /dev/nht0 device and can rewind, etc... We cannot amlabel or do amcheck. The software which comes with the tape drive only supports Microsoft Windows and there is no mention of Linux in the documentation or on their website. I plug the tape drive into a Windows machine and install backup-exec and it works, but I had to first media initialize. I am trying to label the tape using amlabel, with the tape device in the config file set to nht0 instead of ht0, ie non-rewinding, but the message received is: rewinding, reading label, no label found rewinding, writing label archive1, checking label amlabel: no label found, are you sure /dev/nht0 is non-rewinding? when I use amcheck, the message is: ERROR:/dev/nht0:not an amanda tape (expecting a new tape) What am I not seeing/checking? Where does Linux get the driver for the tape drive from if I haven't installed the software that comes with it. Does the Red Hat package come with a driver? The autodetect on startup detects a Seagate STT2A, but on the drive it says STT32A. Am I way off ? Please Help! System Instability - The resultant problem since I've installed the tape drive is our Linux file server is freezing up, forced rebooting results which is obviously a no-no. On shutdown, I see a message: Sending all processes the TERM signal... Sending all processes the KILL signal... md: recovery thread got woken up.. md: recovery thread finished... mdrecoveryd(8) flushing signals. ?Is this of importance to me? The system often freezes at this point. The other message I receive comes up at random intivals, sometimes when the tape's activity light is on with no activity is happening, and often causes the computer to freeze: ide-tape: hdd: cleanup_module( ) called while still busy. Regards Trevor Fraser [EMAIL PROTECTED]
Re: 2 tape strategy
you also need to update the cron entries so that it only runs on the days you want it to.. read the crontab man page, and run the apropriate crontab command for your system. (i can't tell you any more, because you didn't say what OS and version you're running) -ben On Mon, 10 Jun 2002, Fernan Aguero wrote: Hi! I am running amanda-2.4.2p2 succesfully with 2 hosts (1 server, 1 client). All disklist entries (level 0 dump) fit well on a DDS-4 40GB using software compression (about 24 GB now). I have only 4 tapes in use and momentarily just 2 (I am keeping 2 of them as archival tapes as I am burning some of the data on CDs, and will return them to the tapecycle as soon as they get done). This is how I've set my conf file: dumpcycle 7 runspercycle 2 tapecycle 2 tapes Based on this I'd expected amanda to run just twice every 7 days. However, amanda still runs everyday. Is it possible to do this? (if i set a dumpcycle of 30 and runspercycle of 1, would amanda run just once per month?) I am currently forcing level 0 dumps in every run because otherwise amanda would almost always overwrite the only level 0 dump for a filesystem. Since all lev 0 dumps are only a few megabytes ( 100 MB), is it possible to have amanda append these to the end of each tape, thus leaving the level 0 dumps untouched? Currently I have this problem because on weekends amanda would run without being forced to do a lev 0 dump and thus would leave things in the holding disk that need to be flushed on Monday. That day, I will be left with only 1 level 0 dump in tape for each filesystem. Thanks in advance, Fernan PS: I know that just getting more tapes would be the ideal solution, but that is not economically possible in the short term. I'll appreciate comments on how to make amanda run as tapewise as it can, given my shortage of tape media. -- | F e r n a n A g u e r o | B i o i n f o r m a t i c s | | [EMAIL PROTECTED] | genoma.unsam.edu.ar |
Re: 2 tape strategy
check the other replies to your message.. some more detailed info is included. the dumpcycle/runspercycle is there to help the planner along.. nothing more.. remember, the amanda planner is psudo-smart.. it tries to predict which disk should get their full backups which days. the cron job is there to just process a current dump.. allowing you to decide exactly when dumps should occur, not allowing the planer to try and figure it out for you. -ben On Mon, 10 Jun 2002, Fernan Aguero wrote: +[ Ben Kochie ([EMAIL PROTECTED]) dijo sobre Re: 2 tape strategy: | | you also need to update the cron entries so that it only runs on the days | you want it to.. read the crontab man page, and run the apropriate crontab | command for your system. (i can't tell you any more, because you didn't | say what OS and version you're running) | | -ben Yes! Thanks Ben ... I completely forgot about the cron job. However, now my question is: how does the interaction of cron job and dumpcycle/runspercycle work? What is the meaning of runspercycle in amanda.conf if the actual 'runs per cycle' are set through the cron job? i.e. if i set a dumpcycle of 7 days (meaning I want at least 1 level 0 dump of each fs per week) and runspercycle to 1, I would expect to have amanda run only once per week and do a full dump of every fs. However if my cron job is set to run amcheck + amdump every day, I suppose amanda will run daily (as it's happening now) and will try to dump daily to tape. (Why doesn't amanda skip some days, even if called from a cron job?). Fernan | | On Mon, 10 Jun 2002, Fernan Aguero wrote: | | Hi! | | I am running amanda-2.4.2p2 succesfully with 2 hosts (1 server, 1 | client). All disklist entries (level 0 dump) fit well on a DDS-4 40GB | using software compression (about 24 GB now). | | I have only 4 tapes in use and momentarily just 2 (I am keeping 2 of them as | archival tapes as I am burning some of the data on CDs, and will | return them to the tapecycle as soon as they get done). | | This is how I've set my conf file: | | dumpcycle 7 | runspercycle 2 | tapecycle 2 tapes | | Based on this I'd expected amanda to run just twice every 7 days. | However, amanda still runs everyday. | Is it possible to do this? (if i set a dumpcycle of 30 and | runspercycle of 1, would amanda run just once per month?) | | I am currently forcing level 0 dumps in every run because otherwise | amanda would almost always overwrite the only level 0 dump for a | filesystem. | | Since all lev 0 dumps are only a few megabytes ( 100 MB), is it | possible to have amanda append these to the end of each tape, thus | leaving the level 0 dumps untouched? | | Currently I have this problem because on weekends amanda would run | without being forced to do a lev 0 dump and thus would leave things in | the holding disk that need to be flushed on Monday. That day, I will | be left with only 1 level 0 dump in tape for each filesystem. | | Thanks in advance, | | Fernan | | PS: I know that just getting more tapes would be the ideal solution, | but that is not economically possible in the short term. I'll | appreciate comments on how to make amanda run as tapewise as it can, | given my shortage of tape media. | | -- | | | F e r n a n A g u e r o | B i o i n f o r m a t i c s | | | [EMAIL PROTECTED] | genoma.unsam.edu.ar | | | | | +] -- | F e r n a n A g u e r o | B i o i n f o r m a t i c s | | [EMAIL PROTECTED] | genoma.unsam.edu.ar |
Re: mirrored remote backups
you could have a script at the end of the backup rewind the tape, and use ssh to pipe it it to a file on the remote end. dd if=/dev/nst0 | ssh remotehost 'dd of=/output/file' or something similar to that. kinda hackish.. but it could work for you.. and ssh can be autmated securely with authorization keys. -ben On Sat, 8 Jun 2002, Paul Jakma wrote: hi, i'm just wondering is there any way to have amanda to write a backup to both a local tape device and a remote tape/filesystem? basically, we have an amanda tape 'server', which gathers backups and writes them to tape. we'd like these backups also to go to a remote machine. we are using RedHat's amanda 2.4.2p2-4 package. options i see: - have the remote amanda machine back up the holding disk of the primary amanda however, how do we synchronise this? (the primary amanda machine would have to hold backups in the holding area, and wait till the secondary backup was finished before flushing to tape). - use rmt and gnu tar's support for remote devices and have amanda write the backups using gtar's remote support. however, is it as simple as specifying host:/dev/xyz for the tapedev? and again, how do we synchronise? i suspect we could psuedo-synchronise either of the above by having the original backups use the file driver, and then run a second backup, but still.. otherwise, i see the latest amanda code has a vtape driver interface, and there has been talk of writing rmt vtape interface. has anyone tried? anyway, a remote mirror vtape driver would be useful. As would dumptype options to run commands pre and post host-dump and tape-flush (and wait for them to finish). also, what is the latest stable code that one should use for vtape? HEAD? amanda-243-branch? regards, --paulj
Re: amrecover missing files
interesting.. i havn't tried changing the gnutar used by my amanda.. now that I think about it.. I remember having to make changes on some old amanda setups.. I am about ready to try changing my compiler config.. I work on a very odd distribution (home grown) that has a slightly whack compiler setup.. and I'm going to try doing a build against our default libc5 compiler (don't ask.. it's not my fault, i'd be in debian bliss if I could) did you look at the index files manualy? what do they show.. that's thing that made me wonder.. the index files on disk are perfectly fine.. they show all the properly backed up data. but amindexd doesn't return all the listings. -ben On Fri, 7 Jun 2002, Jon LaBadie wrote: On Fri, Jun 07, 2002 at 01:52:39PM -0500, Ben Kochie wrote: I am using indexing, and gnutar to backup all of my filesystems, I keep the indexes in /etc/amanda/backupset/index/ according to my amanda.conf file. backups are working properly, no errors reported. I can run amrestore on a tape and see all of the files that are supposed to be backed up.. I can also gunzip the files in the index, and see them listed.. but when I run amrecover, set the host/disk, and do an ls, i only see a few of the directories/files that are supposed to be backed up. it seems like something in amindexd is not working properly, and I have no idea what. has any other amanda users run into this problem? One of my systems has similar problems. But because this system is a Windows 2000 system and I'm backing it up from an amanda client under Cygwin, I thought it might have been the unusual setup I'm using. However I'm coming to believe others are having similar problems so that it may not be my unique setup. A sample of my results. When I look at the D: partition, there are 2100 directories and files there. When I look at the amanda tape of a level 0 of that partition, it seems all the files are there. And the size of the dump is reasonable. But the index is certainly not. The index has 220 entries, 190 of them directories. Very few, if any, of those are more than 3 levels down. The 30 or so files are all in the top 2 directories. I originally did the cygwin client using gnutar 1.13.19. Now I'm using 1.13.25 and seeing the same results. Suggestions? -- Jon H. LaBadie [EMAIL PROTECTED] JG Computing 4455 Province Line Road(609) 252-0159 Princeton, NJ 08540-4322 (609) 683-7220 (fax)
Re: Backing up incrementals onto hard disk
I think you need to read the amanda documentation. download the source to amanda, and look in the docs directory. also read this document: http://www.backupcentral.com/amanda.html you restore from disk, exactly the same way you restore from tape, please read the documents on how amanda works, they explain it much better than I do. Abu 'Abdis-Salam wrote: also - how do i recover from the hard disk backup if something goes wrong? Thanks again! mnk wrote: thanks for your reply. The thing is - I am not sure exactly what you mean - can u explain to me further please? Thanx again Ben Kochie wrote: you are a bit mistaken as to how amanda works, amanda automaticaly decides if it should do a full or incremental backup each day of the backup cycle. if you only want to change tapes once a week, but have backup every night, here is what you could do. have a dump disk big enough to handle all backups for one week, and on weekends, run amflush to dump those disks to tape. mnk wrote: Hello, I was wondering - how does one back up dail incrementals onto a hard disk while the weekly backups are on tape? Thanks. Mohammed -- Ben Kochie | [EMAIL PROTECTED] IMA Systems Office | 400 Lind Hall, 207 Church St. SE http://www.ima.umn.edu | Minneapolis, MN 55455-0463
Re: Backing up incrementals onto hard disk
you are a bit mistaken as to how amanda works, amanda automaticaly decides if it should do a full or incremental backup each day of the backup cycle. if you only want to change tapes once a week, but have backup every night, here is what you could do. have a dump disk big enough to handle all backups for one week, and on weekends, run amflush to dump those disks to tape. mnk wrote: Hello, I was wondering - how does one back up dail incrementals onto a hard disk while the weekly backups are on tape? Thanks. Mohammed -- Ben Kochie | [EMAIL PROTECTED] IMA Systems Office | 400 Lind Hall, 207 Church St. SE http://www.ima.umn.edu | Minneapolis, MN 55455-0463
Re: Backing up WIN NT-Server with Amanda
yep, I have reliably backed up an NT PDC, and win98 workstation data with amanda. the only thing that does not get backed up is files open for write, and things like the registery (because of the active file status) [EMAIL PROTECTED] wrote: Hi, I need to backup some Windows-Machines and want to use a linux-server running amanda to do this. Has anyone experiences with the following backup scenario: Some Windows-Machines, running WIN98, WIN95 and WIN NT One LINUX-Machine which is used as a fileserver (via SAMBA) I want to mount the Windows-Filesystems on the LINUX-Host (with smbclient), and use amanda to backup everything. (The clients are running 24h a day) I have an Onstream DI-30 tapedrive, which (should) work fine with the new Linux Kernel. Thanks for any comments, best regards, Harald Husemann System Admin Materna GmbH, 44171 Dortmund -- Ben Kochie | [EMAIL PROTECTED] IMA Systems Office | 400 Lind Hall, 207 Church St. SE http://www.ima.umn.edu | Minneapolis, MN 55455-0463
Re: amrecover on client side
please give an example of the command line you are using for amrecover. Usage: amrecover [[-C] config] [-s index-server] [-t tape-server] [-d tape-device] Erik van der Meulen wrote: I would like to performe a resrote directly on the client, as explained in the amanda chapter on www.backupcentral.com. However, if I start amrecover on the (any) client, it tries to connect to localhost. I have not been able to find were to tell it to go to the amanda server. Any hints? -- Erik van der Meulen [EMAIL PROTECTED] -- Ben Kochie | [EMAIL PROTECTED] IMA Systems Office | 400 Lind Hall, 207 Church St. SE http://www.ima.umn.edu | Minneapolis, MN 55455-0463
Re: Amanda MACs
macintosh clients have been discussed before, but as far as what I've seen, the best way to keep mac files on an amanda backup schedual is to keep the mac files on a unix based (linux+netatalk) fileserver "F.M. Taylor" wrote: I know not of MAC, but have been asked "Can this new backup system backup a MAC". Well, does anyone know the answer?? And if the answer is yes, by what method can this be accomplished. --- Mike Taylor Coordinator of Systems Administration and Network Security Indiana State University. Rankin Hall Rm 039 210 N 7th St. Terre Haute, IN. Voice: 812-237-8843 47809 --- "You have zero privacy anyway. Get over it." --Scott McNealy, Sun MicroSystems. -- Ben Kochie | [EMAIL PROTECTED] IMA Systems Office | 400 Lind Hall, 207 Church St. SE http://www.ima.umn.edu | Minneapolis, MN 55455-0463
slow backups
t-idle: 0:00:03 (100.00%) 2 dumpers busy : 0:18:42 ( 4.56%)not-idle: 0:12:07 ( 64.81%) client-constrained: 0:06:20 ( 33.86%) start-wait: 0:00:14 ( 1.34%) 3 dumpers busy : 2:08:42 ( 31.34%) client-constrained: 2:08:01 ( 99.48%) start-wait: 0:00:40 ( 0.52%) 4 dumpers busy : 1:08:42 ( 16.73%) client-constrained: 1:08:38 ( 99.91%) start-wait: 0:00:03 ( 0.09%) 5 dumpers busy : 2:55:04 ( 42.64%) client-constrained: 2:55:04 (100.00%) 6 dumpers busy : 0:09:43 ( 2.37%) client-constrained: 0:09:43 (100.00%) 7 dumpers busy : 0:03:56 ( 0.96%) client-constrained: 0:03:56 (100.00%) 8 dumpers busy : 0:05:04 ( 1.24%) client-constrained: 0:05:04 (100.00%) 9 dumpers busy : 0:00:36 ( 0.15%) client-constrained: 0:00:36 (100.00%) -- Ben Kochie | [EMAIL PROTECTED] IMA Systems Office | 400 Lind Hall, 207 Church St. SE http://www.ima.umn.edu | Minneapolis, MN 55455-0463
