Comments on: Losing Files, a lot of files http://kamlau.com/hardware/losing-files-a-lot-of-files/#utm_source=feed&utm_medium=feed&utm_campaign=feed Software, Gadget, Photography and Gundam Fri, 03 Feb 2012 06:04:48 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: mülly http://kamlau.com/hardware/losing-files-a-lot-of-files/comment-page-1/#comment-4237 mülly Tue, 21 Sep 2010 09:56:24 +0000 http://kamlau.com/?p=506#comment-4237 Corrigendum: Data rate should read 320MBytes/s... Corrigendum: Data rate should read 320MBytes/s…

]]> By: mülly http://kamlau.com/hardware/losing-files-a-lot-of-files/comment-page-1/#comment-4236 mülly Tue, 21 Sep 2010 09:53:14 +0000 http://kamlau.com/?p=506#comment-4236 Hi Cam, the size of the tape cardriges does not matter, since backup software should care of distributing or appending the data over multiple cardriges. In Win2003 this is f.ex. handled (more or less) by NTBackup and removable storage manager. Under unix you have tar, with can handle splitted archives already since aeons (tar stands for "tape archive"). However you can also use one of the many backup suites available (f.e. bacula). In my special case I have two sets of tapes (10 tapes each = ~2GB) for full backup, which I do monthly, than some tapes for incremental backups, which I do weekly or after some "important" updates to my data. My H340 is configured in RAID5 (software RAID, mdraid). So I hope, weekly backup does the job. Concerning LTO4 and greater, you must be aware, that these thingys need very high sustained transfer rates (up to 320kBytes/s) to run smoothly, which outperforms "normal" homeservers (even the stuff I have to deal with on my job), so I consider staying on LTO3 or less which are also quite inexpansive nowadays. Mülly Hi Cam,

the size of the tape cardriges does not matter, since backup software should care of distributing or appending the data over multiple cardriges. In Win2003 this is f.ex. handled (more or less) by NTBackup and removable storage manager.

Under unix you have tar, with can handle splitted archives already since aeons (tar stands for “tape archive”). However you can also use one of the many backup suites available (f.e. bacula).

In my special case I have two sets of tapes (10 tapes each = ~2GB) for full backup, which I do monthly, than some tapes for incremental backups, which I do weekly or after some “important” updates to my data.

My H340 is configured in RAID5 (software RAID, mdraid). So I hope, weekly backup does the job.

Concerning LTO4 and greater, you must be aware, that these thingys need very high sustained transfer rates (up to 320kBytes/s) to run smoothly, which outperforms “normal” homeservers (even the stuff I have to deal with on my job), so I consider staying on LTO3 or less which are also quite inexpansive nowadays.

Mülly

]]> By: Kam http://kamlau.com/hardware/losing-files-a-lot-of-files/comment-page-1/#comment-4235 Kam Tue, 21 Sep 2010 05:20:31 +0000 http://kamlau.com/?p=506#comment-4235 Hi Mülly, thanks for sharing your backup thoughts. I have started using Linux with my Acer easyStore e340 hardware. LTO seems to have a 1.5TB limit at the moment, any thoughts about how to back up more data without using more than 1 tape? Hi Mülly, thanks for sharing your backup thoughts. I have started using Linux with my Acer easyStore e340 hardware. LTO seems to have a 1.5TB limit at the moment, any thoughts about how to back up more data without using more than 1 tape?

]]> By: mülly http://kamlau.com/hardware/losing-files-a-lot-of-files/comment-page-1/#comment-4234 mülly Mon, 20 Sep 2010 13:09:53 +0000 http://kamlau.com/?p=506#comment-4234 Concerning backup strategy, I put a SCSI-card in the PCI-Slot and attached a LTO2 tape unit to it. Since I converted WHS to linux, I have no recommandations for backup utilities (on linux I'm used to use "tar"), but since WHS is based on win2003, NT-Backup should be available, which also handles tapes through removable media services. Why I'm using tapes? I'm using tapes since 1990 and never had problems. Tapes are well suited for real off-line storage (i.e. put a spare copy in your mothers home, if your own home burns away...). Tapes (at least LTO's) are relative rigid compared to external harddrives. Mülly Concerning backup strategy, I put a SCSI-card in the PCI-Slot and attached a LTO2 tape unit to it. Since I converted WHS to linux, I have no recommandations for backup utilities (on linux I’m used to use “tar”), but since WHS is based on win2003, NT-Backup should be available, which also handles tapes through removable media services.

Why I’m using tapes? I’m using tapes since 1990 and never had problems. Tapes are well suited for real off-line storage (i.e. put a spare copy in your mothers home, if your own home burns away…). Tapes (at least LTO’s) are relative rigid compared to external harddrives.

Mülly

]]> By: Kam http://kamlau.com/hardware/losing-files-a-lot-of-files/comment-page-1/#comment-4233 Kam Mon, 10 May 2010 03:21:27 +0000 http://kamlau.com/?p=506#comment-4233 Hi Spencer, I agree with you. I have been using a SATA drive to do my backup of the Shares now. With most of my drives attached to the eSATA enclosure, I have 2 drive bays available on the home server itself. That is where I put my backup drives and run backups once every 1 to 2 weeks. I am still not satisfied with how the Home Server handles files and occasionally I still have "file conflicts" and I have to delete the file from the Share and recover the file from my backup. I think their software replication mechanism is flawed. Hi Spencer, I agree with you. I have been using a SATA drive to do my backup of the Shares now. With most of my drives attached to the eSATA enclosure, I have 2 drive bays available on the home server itself. That is where I put my backup drives and run backups once every 1 to 2 weeks. I am still not satisfied with how the Home Server handles files and occasionally I still have “file conflicts” and I have to delete the file from the Share and recover the file from my backup. I think their software replication mechanism is flawed.

]]> By: Spencer http://kamlau.com/hardware/losing-files-a-lot-of-files/comment-page-1/#comment-4232 Spencer Sun, 09 May 2010 18:07:18 +0000 http://kamlau.com/?p=506#comment-4232 Hey, Just found your blog (good stuff!) and just purchased a home server. As for your backups, you got lucky! Not sure about your space, but why not use eternal drives to backup your home server? I have folder duplication on and back up the server to two external drives, one of which I keep off-site. Even with this method I'm paranoid about loosing the data. Like you, I have photos that I cannot afford to loose! Spencer. .-= Spencer´s last blog ..<a href="http://brawns.ca/blog/2010/04/23/laura-and-levi" rel="nofollow">Laura and Levi</a> =-. Hey,

Just found your blog (good stuff!) and just purchased a home server. As for your backups, you got lucky! Not sure about your space, but why not use eternal drives to backup your home server? I have folder duplication on and back up the server to two external drives, one of which I keep off-site. Even with this method I’m paranoid about loosing the data. Like you, I have photos that I cannot afford to loose!

Spencer.
.-= Spencer´s last blog ..Laura and Levi =-.

]]> By: Kam http://kamlau.com/hardware/losing-files-a-lot-of-files/comment-page-1/#comment-4231 Kam Wed, 09 Sep 2009 02:16:35 +0000 http://kamlau.com/?p=506#comment-4231 I used to use SyncToy to backup files to external HDs and also keeping a copy of the older photos on DVDs. Since I started using the home server, I have not been doing that at all. So it is my fault for not keeping a good copy somewhere else.... I used to use SyncToy to backup files to external HDs and also keeping a copy of the older photos on DVDs. Since I started using the home server, I have not been doing that at all. So it is my fault for not keeping a good copy somewhere else….

]]> By: FatB http://kamlau.com/hardware/losing-files-a-lot-of-files/comment-page-1/#comment-4230 FatB Mon, 07 Sep 2009 09:05:27 +0000 http://kamlau.com/?p=506#comment-4230 Good to hear that recovery went relatively well. It be a real shame otherwise. I admittedly only recently started backing up at the beginning of this year when my HDD turn 4 years. Photos, portfolio, and some music are burned onto CD/DVD. Also copied on external HD, copied additionally to a portable HD, and vital files on 2x 16GB flash drives. I feel OK. Good to hear that recovery went relatively well. It be a real shame otherwise. I admittedly only recently started backing up at the beginning of this year when my HDD turn 4 years. Photos, portfolio, and some music are burned onto CD/DVD. Also copied on external HD, copied additionally to a portable HD, and vital files on 2x 16GB flash drives. I feel OK.

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