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propergol

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Posts posted by propergol

  1. Hello,

    On my Windows 10 PC (insider build 10532 + DrivePool_2.2.0.636_x64_BETA) I did the following tests :

    - 1 pool with 2 HDs, both HD are the same model : WD Green 4 Tb. Each drive tested outside the pool shows a read speed of  150Mb/s (empty disk)

    - the pool has real time duplication, read sriping, bypass system filters set to ON and file protection set to file duplication.

    - on this pool I have copied 2 movies (25Gb, 15Gb)

    - on this pc one SSD capable of 470Mb/s write, and one HD 140Mb/s

     

    Now... :)

    - if I try to copy one movie from the pool to the SSD, DrivePool only read from 1 HD in the pool and so the copy is only 150Mb/s (while the SSD supports up to 470Mb/s)

    - while the movie is being copied @ 150Mb/s to the SSD, I start to copy the second movie to the standalone HD : DrivePool shows that reads from the pool are only made on 1 HD and so copy to SSD drop down to 60Mb/s and copy to HD 60Mb/s   :(

     

    323132Drivepoolcopyissue.png

     

     

     

    I am very new to DrivePool, so maybe I miss something.

  2. Trying to find the right SAS/SATA card...

    Can you tell me if this one is ok : http://www.ebay.fr/itm/IBM-ServeRaid-M1015-SATA-SAS-HBA-Controller-RAID-6Gbps-PCIe-x8-wie-9220-8i-/141741562185?hash=item2100749949

     

    EDIT : I ended buying  a ServeRAID M1115 that is a newer version of the M1015 and was cheaper than M1015 : 100$ shipped to France.

    I hope I would be able to run it on my home server that in fact has a "standard" motherboard and not a server class one.

    http://www.redbooks.ibm.com/technotes/tips0856.pdf

  3. Thanks a lot for your help.

    Yes I have read most part of the manual, but I guess I should experiment virtualy inside VM before jumping to real life scenario  :ph34r:

     

    Regarding the number of SSD (for a x3 duplication) can't we cheat the plugin by creating 3 partitions on one single SSD?

  4. Hello,

    I am thinking of converting my actual home server setup to DrivePool.

    My server is actually running Windows server 2012 r2 and has the folowing hardware setup :

     

    - 1 x SSD 256Gb on the motherboard Intel Z77 SATA 3 :

     for the system and some app  

     

    - 4 x WD RED 4Tb on the motherboard Intels ports Z77 SATA 2 in RAID 10 (which is I think a RAID 0+1) :

    for backups comming from 3 home PCs and server system itself, photos and videos comming from 4 Android devices, movie library

     

    - 1 x Toshiba 5Tb on discreet card Marvell 9210 dual port SATA :

    for backups of some of previous RAID10 folders

     

    - 2 x WD Green 4Tb that are not used yet.

     

    - 3 x GbE Intel Ethernet l212-T1 NICs teamed into LACP 3Gbits/s plugged into 8 ports Netgear switch GS108T that support LACP and jumbo frame.

     

     

    I am thinking of breaking my RAID (with a backup before...) in order to use the 4 WD RED (and the others disks too) with DrivePool.

     

    If I am not mistaking, with Drivepool, if I do at least one duplicate, then I would have some kind of mirroring but also would be able to read from 2 disks at the same time. Plz correct me if I am wrong.

    So for the read part it should have the same speed as my current RAID 10, or even faster if I do 3x duplicate, isn't it?

     

    Now for the write part, again if my andertanding is correct, the speed should be half of my current RAID write speed.

     

    But if I use a SSD with Drivepool's plugin, then I should have faster write speed than my current RAID, since all datas would be cached on the SSD before being written to the pool?

     

    So if I choose 3x duplicates + SSD caching then everything : read, write, IO would be faster than my current setup.

     

    Please let me know if I am correct, but also if you think I am ok with going from a RAID to DrivePool system.

     

    Thanks for this long reading  :)

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