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rsync/ssh - cygwin vs SFU RRS feed

  • Question

  • I have recently setup a HP EX490 home server. My current cloud backup service is accessed via rsync/ssh & so I've installed cygwin & using cron/rsync/ssh to perform the backup. 

    However it is taking huge amounts of CPU.

    I previously had a 300 Mhz NAS, and with a constrained 1 Mbps upload rsync/ssh never took more than a small % CPU.

    On this HP box (2.4 Ghz intel celeron?) ssh/rsync are taking about 50% cpu each.

    The script/rsync options are identical. (includes compression/delta comparison). I am using UNC paths all around.

    I am currently using cygwin 1.7 -- perhaps this is EXTREMELY inefficient. Is there a more efficient implementation around? Is system services for unix ok to install on WHS? Is it still supported? Does it have rsync/ssh/bash? Are they efficient?

    This could become a problem
    Monday, December 28, 2009 10:59 PM

All replies

  • Installed SFI, now installing package installer & the full kit (to get ssh, rsync) from http://www.suacommunity.com/SUA.aspx#bundles

    So far I have NOT enabled case sensitivity. Anyone done this on WHS. Sounds a little dodgy although I've no worries about my files since
     a) case is preserved
     b) all files have just been pulled off a case sensitive unix box

    Could it cause drive extender etc issues. I'd hope not, but...
    Tuesday, December 29, 2009 12:41 AM
  • SFU is problematic. It appears a number of executables core dump, even after the rollup fix 913030 & later are installed for SFU.

    Trying to add interix components for ssh, rsync -- these just dumped too.
    Then tried to install the debian-interix "distro" that's been put together -- these core dump too.

    So does anyone have SFU 3.5 working correctly with WHS PP3?
    WHat if any SFU fixes/config was needed?
    Have you got ssh/rsync working?
    Or installed debian-interix, or other interix bundles/packages?

    All I want is ssh & rsync :-(
    Tuesday, December 29, 2009 3:18 AM
  • I was having similar difficulties.

    I actually ended up finding what I think is a pretty good product.  SuperFlexible.com has a software backup agent that will backup via FTP, SSH/SFTP, and to cloud storage as well as a variety of other ways.  They have a 30-day trial available, but I upgraded to a full license (reasonably priced) and installed as a service.  I am extremely happy with its functionality and am backing up very reliably to my host provider.  (Keep in mind, on a home broadband connection, it still takes forever to upload a few dozen GBs.)

    Worth mentioning, rsync.net the commercial service licenses this software as their windows backup agent.
    Tuesday, December 29, 2009 4:16 AM
  • Since I want to have the flexibility to change rsync, ssh options, create multiple backup schedules, do various remapping I would rather like a real rsync/ssh/cron setup...

    Just dchecking cygwin on a normal desktop to see how ssh/rsync performs, and use that as the testbed for other implementations (WHS is not a good place to experiment)

    But cygwin ssh/rsync on there is so slow as to be unusable. I'm not talking data transfer, it's just all-out slow to process.
    Tuesday, December 29, 2009 12:05 PM