#1
|
|||
|
|||
advice on speeding up the backup
hey guys,
i tried to search for this, but couldn't find anything really. I'm basically using SD! for backing up a drive over a network, and it works great and all, but is pretty slow. i'm needing to backup around 300 gb. Right now I'm looking at an access rate of 6gb/30min, which is around 3mb/s. which is okay, but i'm on a gigabit direct connection to a RAID4 array. [ips manually set on both] right now, i'm doing a "update newer file", any ideas on where the bottleneck is happening? thanks for the help! great app btw =) -patrick |
#2
|
||||
|
||||
We're running as fast as the OS lets us, Patrick... but there's a lot of "small" I/O involved in comparing all the various dates, copying small files, etc.
Note, though, that I get a much better rate with an Infrant ReadyNAS: I get about 6MB/s on a fresh copy and much more than that doing a Smart Update.
__________________
--Dave Nanian |
#3
|
|||
|
|||
yeah i figured it wasn't the app's fault; unless different copy methods were slower/faster than others. i was also curious if differnet copy methods used different amount of resources; whether a "smart copy" would use more RAM/CPU than a simple copy over new or different files.
i'm also curious where someone would start to diagnose it, whether it'd be at the network level, the array level, etc. -patrick |
#4
|
||||
|
||||
Well, certainly Copy Newer would do a bit less stat-ing, but that stuff would likely be pretty cached. I don't think you'll see much of a difference...
Diagnosing will likely be quite difficult: you'd have to look pretty carefully about the pattern of I/O on the far side of the link, and I'm not sure you'd be able to make it much better without a lot of control of both sides.
__________________
--Dave Nanian |
#5
|
|||
|
|||
thanks for the replies man, keep up the fantastic work!
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Advice on other backup packages | jrls | General | 5 | 03-09-2007 05:46 AM |
Advice on 2-stage backup to offsite storage. | cheese2 | General | 3 | 06-17-2006 01:57 PM |
How to verify a Scheduled Backup? | tuqqer | General | 3 | 12-06-2005 06:50 PM |
(Zero-length) File caused SuperDuper to abort backup | alancfrancis | General | 7 | 08-31-2005 10:42 AM |
Smart Backup Error | bill s | General | 20 | 02-04-2005 09:46 AM |