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Forum Discussion
ReadyNas backup and restore
Hi,
I have two ReadyNas Duo units, one in the office as a main backup array and one at home. I have set up the office NAS to backup via rsync to the NAS at home. I have a few questions, sorry if duplicated elsewhere:
1) With broadband connections at the office and home, what sort of throughput can I expect? At the moment I'm getting around 150MB copied per hour which seems rather slow. Does the NAS CPU limit the transfer speed or some other setting? I'm using DynDns on my home router.
2) I have selected to compress files for faster transfer. Which is better, doing this or turning off to save NAS CPU cycles?
3) Once files rsync'd to the home NAS, how do I restore files from my home NAS back to the office? I have selected not to delete files remotely when deleted in the office. Do I FTP into the home NAS and transfer back that way?
4) I have about 150GB of data that I want to perform rsync backup on. Obviously, the first backup would take days if not weeks, so is there a way to copy the data in the office to the home NAS and then just do rsync incremental backups thereafter? I can't see the option NOT to do a full backup when creating a backup set.
Thanks for you help.
I have two ReadyNas Duo units, one in the office as a main backup array and one at home. I have set up the office NAS to backup via rsync to the NAS at home. I have a few questions, sorry if duplicated elsewhere:
1) With broadband connections at the office and home, what sort of throughput can I expect? At the moment I'm getting around 150MB copied per hour which seems rather slow. Does the NAS CPU limit the transfer speed or some other setting? I'm using DynDns on my home router.
2) I have selected to compress files for faster transfer. Which is better, doing this or turning off to save NAS CPU cycles?
3) Once files rsync'd to the home NAS, how do I restore files from my home NAS back to the office? I have selected not to delete files remotely when deleted in the office. Do I FTP into the home NAS and transfer back that way?
4) I have about 150GB of data that I want to perform rsync backup on. Obviously, the first backup would take days if not weeks, so is there a way to copy the data in the office to the home NAS and then just do rsync incremental backups thereafter? I can't see the option NOT to do a full backup when creating a backup set.
Thanks for you help.
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skunk182 wrote: 1) With broadband connections at the office and home, what sort of throughput can I expect? At the moment I'm getting around 150MB copied per hour which seems rather slow. Does the NAS CPU limit the transfer speed or some other setting? I'm using DynDns on my home router.
The maximum throughput will be limited to the slowest uplink speed. Most DSL & cable broadband connections are asyncronous, meaning that they are great for downloading, but slower for uploads. In my neck of the woods a typical home DSL circuit is 7 Mbps down and 800 Kbps upstream. Cable is a bit better at 10 Mbps down / 1 Mbps up.
In your case, it looks like you're getting ~333 Kbps, which isn't abnormal, depending on what level of service you've purchased.skunk182 wrote: 2) I have selected to compress files for faster transfer. Which is better, doing this or turning off to save NAS CPU cycles?
I generally use compression. As noted in my answer to #4, use the backup Duo to pull data from the primary. This way, the backup unit will have to make all the delta calculations and compression and the primary Duo's CPU won't be taxed.skunk182 wrote: 3) Once files rsync'd to the home NAS, how do I restore files from my home NAS back to the office? I have selected not to delete files remotely when deleted in the office. Do I FTP into the home NAS and transfer back that way?
Yes, you can use FTP or ReadyNAS Remote or WebDAV, etc.
ReadyNAS Remote: http://www.readynas.com/?cat=52
WebDAV: http://www.readynas.com/?p=126skunk182 wrote: 4) I have about 150GB of data that I want to perform rsync backup on. Obviously, the first backup would take days if not weeks, so is there a way to copy the data in the office to the home NAS and then just do rsync incremental backups thereafter? I can't see the option NOT to do a full backup when creating a backup set.
You can put both on the same network and then create an NFS backup job to pull the data from the primary unit to the backup. Once the job is complete, modify the backup job to use rsync (don't create a different backup job or it will have to backup everything again).
NFS can copy data at about 45 GB per hour vs. much much slower for rsync.- Thanks dbott67,
A couple more things if you have time:
1) I need to change IP address info moving NAS units between work and home. Will this affect the backups already created? I need to fix the ip for home so the route can forward to it and DHCP at work.
2) I have selected to use the recycle bin so rsync can be set to delete files on the remote NAS during a backup. I can't find the explorer link to restore deleted files as mentioned in the manual. What am I missing?
Cheers, - 1) No. Just make sure you change the backup job properties of the existing job and it should continue to work fine if port forwarding etc. is set up correctly.
As for question 2 I don't know as I haven't used the Recycle Bin - Finally (hopefully!!)
I have an SBS 2003 server which I normally just create an ntBackup to removable hardrive. Now, if I simply backup to the NAS then my rsync NAS to offsite NAS will see a change and try to backup the whole ntBackup file again.
What would be the best approach to backup the SBS 2003 now i'm using the rather useful NAS??
Thanks skunk182 wrote:
What would be the best approach to backup the SBS 2003 now i'm using the rather useful NAS??
I use DeltaCopy to rsync (push) the data folders on my Windows servers to the ReadyNAS. I've got 3 ReadyNAS 2100's (one primary used to backup about a dozen servers; and 2 installed at 2 remote branches acting as backups to the primary). We've got about 172 GB of data on the primary NAS (I'm not backing up applications /OS; just SQL dumps, e-mail backups, staff data and config stuff). This basically boils down to around 6 GB of data changing daily (which rsync can compress and massage down to approx. 1.5 GB) for the actual WAN backup (which takes about an hour over 10 Mbps fibre):
http://readynas.com/forum/viewtopic.php ... 73#p177816
The servers push their data to the primary NAS via rsync at regular intervals and then every night at midnight I take a snapshot of the shares. Shortly thereafter, I have a Frontview backup job configured on the remote 2100's pull the snapshot data over the WAN.- That's great, thankyou dbott67. :D
dbott67 wrote: skunk182 wrote:
What would be the best approach to backup the SBS 2003 now i'm using the rather useful NAS??
I use DeltaCopy to rsync (push) the data folders on my Windows servers to the ReadyNAS. I've got 3 ReadyNAS 2100's (one primary used to backup about a dozen servers; and 2 installed at 2 remote branches acting as backups to the primary). We've got about 172 GB of data on the primary NAS (I'm not backing up applications /OS; just SQL dumps, e-mail backups, staff data and config stuff). This basically boils down to around 6 GB of data changing daily (which rsync can compress and massage down to approx. 1.5 GB) for the actual WAN backup (which takes about an hour over 10 Mbps fibre):
http://readynas.com/forum/viewtopic.php?f=21&t=32373#p177816
The servers push their data to the primary NAS via rsync at regular intervals and then every night at midnight I take a snapshot of the shares. Shortly thereafter, I have a Frontview backup job configured on the remote 2100's pull the snapshot data over the WAN.
Been a while since I tried to backup an SBS to a NAS. Last time I tried it (probably almost 10 years ago), I had issues with NTFS authentication and permissions. Forgive me for asking what may be a silly question, but does this process (esp, rsync) maintain file-level permissions?
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