Holding disk size question
In amanda.conf it says "If a dump is too big to fit on the holding disk than it will be written directly to tape." I'm hoping to write 200g at a time to DLT, and would like to stream it if possible. Does that mean I need 200g of holding disk? I scrounged up 20g, but another 180g doesn't look likely. Thanks list! __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: Holding disk size question
On Sat, 27 Aug 2005, Marcus wrote: In amanda.conf it says "If a dump is too big to fit on the holding disk than it will be written directly to tape." I'm hoping to write 200g at a time to DLT, and would like to stream it if possible. Does that mean I need 200g of holding disk? Yep. I scrounged up 20g, but another 180g doesn't look likely. Huh? Disks are dirt cheap these days. Look at this one: http://www.newegg.com/product/Product.asp?Item=N82E16822144309&CMP=OTC-Froogle&ATT=Western+Digital+Caviar+SE+WD2500JB+250GB+7200+RPM+IDE+Ultra+ATA100+Hard+Drive 250 GB for $110. That's nothing compared to what you'll be spending on a rack of tapes, and what you probably already paid for the DLT drive. -Mitch
Re: Holding disk size question
On Sat, Aug 27, 2005 at 09:49:11AM -0700, Marcus wrote: > In amanda.conf it says > "If a dump is too big to fit on the holding disk than > it will be written directly to tape." > > I'm hoping to write 200g at a time to DLT, and would > like to stream it if possible. Does that mean I need > 200g of holding disk? I scrounged up 20g, but another > 180g doesn't look likely. Is your "200g" all for single DLE? Except for direct to tape, the image of a DLE dump is not taped until the entire image is collected. That passage should be understood as "if the image (possibly compressed with gzip) of any DLE is estimated as too large to fit the currently available holding disk space" then it has to go directly to tape. Given that the images must be collected somewhere before taping (or go directly to tape) where other than the holding disk would be possible? Rhetorical, no response needed :) -- Jon H. LaBadie [EMAIL PROTECTED] JG Computing 4455 Province Line Road(609) 252-0159 Princeton, NJ 08540-4322 (609) 683-7220 (fax)
Re: Holding disk size question
Marcus <[EMAIL PROTECTED]> writes: > In amanda.conf it says > "If a dump is too big to fit on the holding disk than > it will be written directly to tape." > > I'm hoping to write 200g at a time to DLT, and would > like to stream it if possible. Does that mean I need > 200g of holding disk? I scrounged up 20g, but another > 180g doesn't look likely. As others pointed out, it's about the max size of single dump. My experience (with DDS - which is less reliable than DLT, and is really unreliable if not streamed) is that I want holding disk on the order of twice the tape, so that I can run backups without tape and then flush if the tape isn't changed. If you are backing up a single 200G partition, maybe it's ok not to use a holding disk - if the DLT is happy with start/stop. But if you have 10 20G partitions, with a 100G or so holding disk you'd be able to do 5 in parallel and then stream them, making the backups run much faster. -- Greg Troxel <[EMAIL PROTECTED]>
