Stephen, Jon, Lalo and Gene (and anyone else!) Thanks for the response. It's very helpful - I wasn't picking on you Lalo but when I saw the 24GB quoted, alarm bells started ringing, so it's good to here that my 55GB should be backup-able.
As far as the holding disk goes, I only have 35GB disk, and I'm on 32bit Sol 7. AMANDA is configured to use "chunks" of just under 2GB each. The errors tend to be: FAILURE AND STRANGE DUMP SUMMARY: toronto /home3 lev 0 FAILED [out of tape] taper: FATAL syncpipe_get: w: unexpected EOF or FAILURE AND STRANGE DUMP SUMMARY: toronto /home3 lev 0 FAILED [data timeout] toronto /home5 lev 0 FAILED [out of tape] taper: FATAL syncpipe_get: w: unexpected EOF toronto /home5 lev 0 FAILED ["data write: Broken pipe"] toronto /home5 lev 0 FAILED [dump to tape failed] While this points the finger at the EZ17 library, The Mammoth 2 drive inside it (AFAICT) should take upto 150GB on it 225m AME tapes I use - the EZ17 is itself reckoned to do up to a 1TB but that's probably by spanning 7 tapes together! The other possibility I consider is: may the point of failure be when the holding disk hits 35GB, do the 2GB chunks waiting to get "held" clash with the 2GB chunks coming off onto the tape? One thing I would love to do is turn the hardware compression off. However, while the "standalone" Mammoth 2 drive has this option in its LCD driven menu, there is no option in the LCD menu of the EZ17! Is there somewhere I can do this at software level on my Solaris 7 Ultra 2 (st.conf?) Regards Kenny -- Kenny MacPherson IT Manager -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Gene Heskett Sent: 05 June 2002 20:11 To: Kenny MacPherson; [EMAIL PROTECTED] Subject: Re: Can AMANDA only backup < 24GB partitions??? On Wednesday 05 June 2002 12:42 pm, Kenny MacPherson wrote: >Can AMANDA on the whole only backup < 24GB partitions or is this a > tape limitation in this case? > >I have a /home5 partition on a DELL 4400 running RH7.2 and it's > failing daily! Other partitions do backup okay. The only issue is > that I have a Mammoth-2/EZ17 and even when I snip my disklist down to > this directory alone, it fails to complete a backup. > >It's 55GB and AFAICT the M2 should eat that kind of space up no > problem. It's set for nocomp-high as Exabyte tell me the EZ17 always > has hardware compression on! Generally speaking, the hardware compression in a tape drive just isn't up to the same compression standards as external programs such as gzip et all can do. Also, data which has already been smunched as an archive will often expand quite a bit when presented to the drives compressor. Your best bet to settle the argument at your site is to turn the drives hardware compression off, then run the tapetype program against your standard tape and find out how big the drive really is when being fed data from /dev/urandom. That data is virtually uncompressable. Then set that size -5% or so in the tapetype specifier in amanda.conf, and turn on the 'client best' or 'server best' options by choosing a backup type in the disklist that uses one or the other of those options. BTW, what is the advertized rated capacity of the EZ17? -- Cheers, Gene Wolfson Microelectronics Ltd. http://www.wolfsonmicro.com t: +44 131 272-7000 f: +44 131 272-7001 Registered in Scotland 89839 This message may contain confidential or proprietary information. If you receive this message in error, please immediately delete it, destroy all copies of it and notify the sender. You must not use or disclose any part of this message if you are not the intended recipient. We may monitor all Email communication through our networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise. We take reasonable precautions to ensure our Emails are virus free. However, we cannot accept responsibility for any virus transmitted by us and recommend that you subject any incoming Email to your own virus checking procedures. Wolfson Microelectronics Limited is a company incorporated in Scotland having its Registered Office at 20 Bernard Terrace, Edinburgh EH8 9NX
