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I am looking for a storage to backup my servers
We have HP Proliant dl320 servers with network and SAS connector
The intention is that we can restore quickly, small nasboxes are too slow.
Do you have any suggestions
if you want to have fast restores, something disk-based with a raid5 stripe could be enough - that'll push a few 100 MB/s of read throughput. But you'd also need sufficient network bandwidth for this.
Originally Posted by
I wonder - can you tell us a hard number?
how much data, how long should the restore take max.
can there be a downtime (1 second, 1 minute, 1 hour) for the backup?
Don't dream up numbers, if i.e. you'd wanna restore 5TB in 4 hours and have a month's worth of data... you might need to spend 6-digit money
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We have now a small nas server with 8TB diskspace, this is connected over a 100 MB network, we backup 15 servers to this storage. It take a very long time to backup 15 servers every day
We can have downtime.
I want to install a raid5 storage, example Proliant DL380p with 25 sas disks 1TB
can we connect to 15 servers with sas connector
or do we use a network connection of 1GB
or do you have a other solution
do you know where your bottlenexk is? are you backing up all servers at the same time? are you saturating your 100 Mbps port?
a few ideas for you
1) backup/restore over a Gbps LAN
2) make sure you have enough IOPS - avoid RAID5 for backups, try RAID60
3) stagger your backups so that all servers are not writing to the backup device at the same time - and if the servers are VMs, this also ensures IOPS on the other end by making sure they are not all being read at the same time
what are you using for backups? some sort of script like rsync? or a backup solution?
with the right solution and planning, you should be able to backup without any downtime and do so pretty quickly
My 100Mbps connection is saturating
We make our backups by night the time frame is from 10PM to 6 AM
We use now idera as backup solution.
consider a Gbps connection if you are saturating your 100 Mbps port
Originally Posted by
stagger your servers so that they are not backing up at the same time (with a bigger port, you should be able to complete them faster)
lastly, make sure you have enough IOPS on your backup device. if you are creating IOWait on your storage device, you are slowing down your backups ability to complete
hope this helps
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