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  1. #1
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    Talking R1Soft Still Have Problems? Disk Safe Corruption?

    I was looking at R1SOFT 10 months ago, but there was a lot of talk about hidden disk safe corruption and people not finding out until the critical moment when a restore would fail. Is this all fixed now? Would you buy R1SOFT again? Any problems with it currently?

    Looking to add it for some clients who use LAMP and desire the hourly MySQL check points, ease of use, etc.

    Cheers

  2. #2
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    Providing you maintain it properly you should not encounter any problems with 2.0. There are the odd times when the disk safes corrupt but if you are monitoring you should be able to detect and deal with this swiftly, more importantly generally you can still restore what is there, just not add new points.

    The mySQL addon is probably the best part of r1soft.
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  3. #3
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    Thanks, assume 3.0 is preferred now though? I know some people weren't happy with it when it came out, but that's been a while now...?

  4. #4
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    Quote Originally Posted by Scott.Mc View Post
    Providing you maintain it properly you should not encounter any problems with 2.0. There are the odd times when the disk safes corrupt but if you are monitoring you should be able to detect and deal with this swiftly, more importantly generally you can still restore what is there, just not add new points.

    The mySQL addon is probably the best part of r1soft.
    Why do you believe the mySQL addon is the best part of the software?

    Thanks
    Frank
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  5. #5
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    Quote Originally Posted by Scott.Mc View Post
    Providing you maintain it properly you should not encounter any problems with 2.0. There are the odd times when the disk safes corrupt but if you are monitoring you should be able to detect and deal with this swiftly, more importantly generally you can still restore what is there, just not add new points.

    That has been our experience as well when there is corruption it just won't allow you to add new restore points. So all you do is make a new disk safe and eventually delete the old one.
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  6. #6
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    Quote Originally Posted by tumble View Post
    Why do you believe the mySQL addon is the best part of the software?

    Thanks
    Frank
    Because you can do 'true' consistent backups without loading down the server. Without the module you are just copying over the raw data files which could be corrupt or inconsistent.

    You also cannot correctly restore a innodb database with ease without the mysql module.
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  7. #7
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    Quote Originally Posted by Steven View Post
    Because you can do 'true' consistent backups without loading down the server. Without the module you are just copying over the raw data files which could be corrupt or inconsistent.

    You also cannot correctly restore a innodb database with ease without the mysql module.
    Thanks great explanation.
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  8. #8
    One thing we found about R1Soft is the amount of time to do a bare metal restore is taking quite some times for big restoration - say a TB of disk. Other than that, R1Soft works pretty well.
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  9. #9
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    Quote Originally Posted by Steven View Post
    You also cannot correctly restore a innodb database with ease without the mysql module.

    Not as easy as it used to be for us. Every single restore with innodb tables we need to run their shell script to generate the actual .sql backup file. Started happening in a recent version and it has yet to be fixed. They just tell us use their RestoreDB.sh file to do it after the actual backup restore from the panel fails.
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  10. #10
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    Quote Originally Posted by tweakservers View Post
    One thing we found about R1Soft is the amount of time to do a bare metal restore is taking quite some times for big restoration - say a TB of disk. Other than that, R1Soft works pretty well.
    We are able to do achieve over 500mbit on a regular basis doing BMR's between various datacenters on CDP2.
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  11. #11
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    Quote Originally Posted by Steven View Post
    We are able to do achieve over 500mbit on a regular basis doing BMR's between various datacenters on CDP2.
    Depends on the number of deltas and the amount of data, the BMR (when it works) time goes up exponentially as the size of actual data increases.

    Its not uncommon or it to take _days_ to copy back in the event of a disaster.
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  12. #12
    Quote Originally Posted by gordonrp View Post
    I was looking at R1SOFT 10 months ago, but there was a lot of talk about hidden disk safe corruption and people not finding out until the critical moment when a restore would fail. Is this all fixed now? Would you buy R1SOFT again? Any problems with it currently?

    Looking to add it for some clients who use LAMP and desire the hourly MySQL check points, ease of use, etc.

    Cheers
    I wouldn't trust 2.0, but 3.0 might work. 2.0 has two major issues that I don't think they plan to fix: 1) if the backups get out of sync, you won't know it, and it can't repair this. For example, if you update your kernel and reboot, and the new kernel doesn't have the r1soft module. You then install the r1soft module. The writes in between, when r1soft module wasn't running, are lost forever, and r1soft won't rescan the disk looking for changes. 3.0 does rescan the entire disk if it thinks things may have gotten out of sync like this. 2) running out of space. see 1), as it causes a similar problem for similar reasons. I'm not 100% sure 3.0 fixes this 100%, but based on what I've seen, it seems to behave more reasonably in a wider variety of edge cases like this, so we don't use 2.0 at all anymore.
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  13. #13
    Quote Originally Posted by othellotech View Post
    Depends on the number of deltas and the amount of data, the BMR (when it works) time goes up exponentially as the size of actual data increases.

    Its not uncommon or it to take _days_ to copy back in the event of a disaster.
    Is this still the case with version 3.0?

  14. #14
    The last BMR I did under 3.0 didn't take very long, but, the person being restored had only just started doing backups a couple weeks before we had to back them up, so I don't know if that's a fair comparison or not.
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  15. #15
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    Time required for BMR restoration depend from many factors (with 2.0 CDP):

    1) Size of data required to be restored.
    2) How "old" first snapshot compare to last snapshot.
    3) Speed of network.
    4) General speed of CDP server (CPU, HDD's)
    5) How busy CDP server with other tasks while you try restore using BMR.

    With CDP 3.0 (Advanced and Enterprise only) i could see one big improvement:

    You could host your CDP server on second hdd's and therefore you save time on 3,4 and 5 item.
    CDP 3 also have other good feature but i try shed some lights only on BMR aspects.
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