1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

eSATA - Has been enabled, but....

Discussion in 'DIRECTV Tips and Resources' started by Earl Bonovich, Oct 4, 2006.

  1. Nov 10, 2006 #481 of 2831
    btmoore

    btmoore Hall Of Fame

    1,079
    0
    Aug 28, 2006
    Yes, you need one that supports 4 drives and supports raid 0 or jbod. RAID 0 has a performance advantage on reads so it would likely be the better choice.
     
  2. Nov 10, 2006 #482 of 2831
    P Smith

    P Smith Mr. FixAnything

    21,580
    142
    Jul 25, 2002
    W.Mdtrn Sea
    This is not a SCSI or dual channels IDE RAID controller, you can't connect multiple ports SATA config to HR20; we discuss it before in the thread - take a look and pay attention to that requirement.
    So far only one type of external 'smart' enclosure what support TWO disks in RAID-0 ( not sure about JBOD mode ) works for HR20.
     
  3. Nov 10, 2006 #483 of 2831
    bbroach

    bbroach AllStar

    64
    0
    Sep 17, 2006
    I got the opportunity to gauge the capacity of HR20 #1 (with 1TB eSATA RAID), post 00EB, last night:


    Deleted 5hrs of MP2, gained 4% disk free space => 1TB (minus D* portion) = ~ 125hrs MP2; roughly consistent with [(1000GB - 100GB)/200] * 30hr = 135hr

    Recorded 2hrs of MP4, disk space diminished 1% => 1TB (minus D* portion) = ~ 200hrs MP4; roughly consistent with [(1000GB - 100GB)/200] * 50hr = 225hr

    I'm betting that adding/subtracting something close to 10% would give more accurate numbers, but these estimates are precise enough to be very encouraging.

    regards, billb....
     
  4. Nov 10, 2006 #484 of 2831
    taw123

    taw123 Mentor

    35
    0
    Sep 4, 2006
    Anyone done it yet? Thinking a 4 bay enclosure with 1 hot spare would be a good solution and drives are cheap. So far as I know there is no size limitation. Anyone done raid 5 or or know a solution that would work with the HR20? Willing to test a bit in a couple weeks when I get some time.

    Thanks.
     
  5. Nov 10, 2006 #485 of 2831
    P Smith

    P Smith Mr. FixAnything

    21,580
    142
    Jul 25, 2002
    W.Mdtrn Sea
    If you can tell us what is this enclosure ? What it required from HOST ie HR20 side ? Multiple ports support ?
     
  6. Nov 10, 2006 #486 of 2831
    bbroach

    bbroach AllStar

    64
    0
    Sep 17, 2006
    Her is a five bay; not cheap, though....

    http://www.nitroav.com/product/400/


    regards, billb....
     
  7. Nov 10, 2006 #487 of 2831
    bbroach

    bbroach AllStar

    64
    0
    Sep 17, 2006
    This is the setup I bought:

    http://www.nitroav.com/product/438/

    and here is the enclosure by itself:

    http://www.nitroav.com/product/442/

    The RAID requires nothing from the host side - turn everything off, hook up the cable, turn on the drive, boot the DVR. The fan is a little on the noisy side, but, after a month, mine has quieted noticeably.

    regards, billb....
     
  8. Nov 10, 2006 #488 of 2831
    P Smith

    P Smith Mr. FixAnything

    21,580
    142
    Jul 25, 2002
    W.Mdtrn Sea
    Yeah, $1099 is too high and support only ATA-133 disks.
    I feel the device will not work with HR20. Don't ask why, but after many years in the fields, I don't trust manufacturer's words - only after real tests !
     
  9. Nov 13, 2006 #489 of 2831
    remlle

    remlle DBSTalk Club Member

    84
    0
    Aug 22, 2006
    IF I add this drive what will happen to the recordings on the original drive will they be carried over to the new drive? or will I lose them.
     
  10. Nov 13, 2006 #490 of 2831
    Earl Bonovich

    Earl Bonovich Lifetime Achiever

    30,092
    3
    Nov 15, 2005
    They will not be carried over.
    They are not "lost", they will still be on your internal drive.

    But you won't be able to see or watch them, unless you disconnect the eSATA drive.
     
  11. Nov 13, 2006 #491 of 2831
    remlle

    remlle DBSTalk Club Member

    84
    0
    Aug 22, 2006
    ok so If I disconnect the esata drive it will revert back to the old drive and all old videos and what not will still be there on the internal drive
     
  12. Nov 13, 2006 #492 of 2831
    Earl Bonovich

    Earl Bonovich Lifetime Achiever

    30,092
    3
    Nov 15, 2005

    Yes... but you will have to shutdown when conecting and disconnecting the external drive.
     
  13. Nov 13, 2006 #493 of 2831
    remlle

    remlle DBSTalk Club Member

    84
    0
    Aug 22, 2006
    got ya. thanks.
    so I added a drive. I got a 500gb western digital drive link below

    http://www.pc-pitstop.com/sata_hard_drives/

    and a IcyDock fanless Esata enclosure. link below.

    http://www.pc-pitstop.com/external_enclosures/mb559us.asp

    Everything looks like its working good and functioning. I can see drive activity and the unit does operate quieter. When just watching TV the light blinks a little every now and then. but when rewinding and fast forwarding there is alot of action on the lights. It apears to work nice Ill have to watch it a bit and let the recordings go. I have 2 setup to record tonight so we will see how it handles the recordings.
     
  14. Nov 20, 2006 #494 of 2831
    rfoley2

    rfoley2 Mentor

    34
    0
    Sep 27, 2006
    This is probably an extremely dumb question, but I am going to ask anyway. I installed an enclosure with two 500 GB drives in it. My intent was to set it to RAID 0. After receiving the new software over the weekend, I noticed the available space wasn't as high as I thought it should be. I went through the settings on the drive and realized I set the RAID to 1. Can I simply change it to 0? Will I loose everything that is currently recorded?
     
  15. Nov 20, 2006 #495 of 2831
    remlle

    remlle DBSTalk Club Member

    84
    0
    Aug 22, 2006
    you will loose it all because the way the data is written is different on a raid 1 versus a raid 0. the system will recalculate and change all that is needed. then when you plug it back into the HR20 it will reinitilize the drive again causeing it to blank all that is in there.
     
  16. Nov 20, 2006 #496 of 2831
    Neil Derryberry

    Neil Derryberry Hall Of Fame

    2,014
    0
    Mar 23, 2002
    Actually it depends on the controller.. some can change from one raid level to another pretty handily. I'm not positive a consumer-grade device will do it but you never know.
     
  17. Nov 20, 2006 #497 of 2831
    grendal_fly

    grendal_fly Cool Member

    17
    0
    Oct 13, 2006
    Which enclosure did you get? Mine cannot change RAID levels without reformatting.
     
  18. Nov 20, 2006 #498 of 2831
    grendal_fly

    grendal_fly Cool Member

    17
    0
    Oct 13, 2006
    As promised I wanted to give everyone an update on my 1TB RAID RAID 0 enclosure. After the update I now show 96% available with about 6 hours of HD and 20 SD in my playlist, So capacity is around 4.5 times the original system.
    :D
     
  19. Nov 20, 2006 #499 of 2831
    vegout

    vegout Mentor

    39
    0
    Oct 30, 2006
    Seagate has just announced drives specifically for DVR usage:

    seagate.com/products/consumer_electronics/db35series.html
     
  20. Nov 20, 2006 #500 of 2831
    P Smith

    P Smith Mr. FixAnything

    21,580
    142
    Jul 25, 2002
    W.Mdtrn Sea
    The DB35 serie well known at least this year ;).
     

Share This Page