klor

Members
 View Profile  See their activity

  • Posts

    19

  • Joined

  • Last visited

 Content Type 

Posts posted by klor

    Recommended controllers for Unraid

    in Storage Devices and Controllers

    Posted

    31 minutes ago, JonathanM said:

    Slight serial number modifications are common as well, so Unraid loses track of which disk is assigned to which slot, causing needless stress as a new config is needed to put them in their slots and tell Unraid everything is fine, go about your business with these new serial numbers.

    Yes, these are common symptoms for external USB devices, so I can imagine this for some raid cards, too. 

     

    Thank you for for the detailed explanation, I learned a lot again. Thanks!

     

    So I go with LSI 9211-8i using IT mode.

     

    Can I boot up from disks connected to LSI 9211-8i?

    Are the disks shown in the BIOS, UEFI or appears just within the card settings?

     

    (I know Unraid boots from flash drive, but I need universal hw configuration, which can be used for multiple purposes, if needed later)

     

    Recommended controllers for Unraid

    in Storage Devices and Controllers

    Posted

    5 hours ago, ChatNoir said:

    To work properly Unraid requires direct access to the drive (like most software base NAS OS).

    RAID controllers do not allow that as they act as a abstraction layer between the hardware and the software.

    So I should go with LSI 9211-8i in IT mode. 

     

    Just one thing I remember, that my Areca raid card had the option to set pass through mode for each drive attached.

    So the OS has direct access to the drive attached to Areca raid card with pass through mode. 

     

    Likely I will stick with LSI 9211-8i, but still curious if the pass through mode in Areca cards are something similar like IT mode in LSI. 

    Recommended controllers for Unraid

    in Storage Devices and Controllers

    Posted · Edited by klor

    9 hours ago, dopeytree said:

    Have you used all your motherboard's fan connectors at the moment?

     

    Might be able to add another fan.

    Motherboard has more free fan connectors.

    But the tower case has no place to screw another fan onto the side of the case, which could blow air to the cards from top direction. 

     

    I'm thinking on top cooling fan like this:

    Vertical heat dissipation of North South Bridge, Support 12cm 14cm cooling fan:

    https://a.aliexpress.com/_mtUjYPK

    -1402571624-204417280.thumb.jpg.f15e9ca7fcbc24ebea9257f89bea6519.jpg

    This might be placed over the LSI card to provide further cooling. 

    • Like 1

    Recommended controllers for Unraid

    in Storage Devices and Controllers

    Posted

    On 10/7/2022 at 10:30 AM, JorgeB said:

    An LSI 9211-8i or similar, they can be found pretty cheap used on ebay.

    I did read, that LSI cards are getting very hot and needs additional cooling, because the attached factory heatsink is not enough. 

     

    What is the experience? 

    Does it cause problems, if only the original heatsink is used? 

     

    Recommended controllers for Unraid

    in Storage Devices and Controllers

    Posted

    6 hours ago, trurl said:

    Parity checks and disk rebuilds require simultaneous access of all disks so multiplier will slow things down a lot.

    I understand. 

    So SATA multiplier affects performance, when parity checks and disk rebuilds are done.Thanks! 

     

    I'm thinking, if my mentioned cards are using SATA multiplier or not. 

    PCI-E 4X 10 Port SATA Card with PCIE3.0 (using ASM1166+JMB585 chipset):

    https://a.aliexpress.com/_mOKtbzq

    ASM1166 chipset supports 6 SATA disks:

    https://www.asmedia.com.tw/product/45aYq54sP8Qh7WH8/58dYQ8bxZ4UR9wG5

     

    JMB585 chipset supports 5 SATA disks:

    https://www.jmicron.com/products/list/15

     

    So I suppose this card supports natively 10 SATA ports without multiplier.

    Am I right? 

     

    Recommended controllers for Unraid

    in Storage Devices and Controllers

    Posted

    On 10/3/2022 at 7:49 AM, ChatNoir said:

    Your motherboard already have 6 SATA ports, do you mean 6 additional disks ?

    Yes, but I plan to hang all disks on the same card. Should work all disks, or nothing. Just imagine the situation, that 6 disk are attached to the SATA xard, 2 to the motherboard SATA. If the card is broken, then suddenly 6 disks will be missing, 2 will be still available, which will result unwanted situation.

    Recommended controllers for Unraid

    in Storage Devices and Controllers

    Posted · Edited by klor

    Is any of the following cards using sata port multiplier? 

     

    PCI-E Sata Adapter 4X PCIE Sata PCI Express Expansion Card with 10 Ports PCIE3.0 (using ASM1166+JMB585 chipset):

    https://a.aliexpress.com/_mOKtbzq

     

    Another nominate card could be this one:

    PCIE SATA Card SATA 3.0 PCIe Card, PCIe To SATA Controller Expansion Card with 16 Ports (using ASM1064 x 4 chipset):

    https://a.aliexpress.com/_mK9YdS0

     

    There said, cards with sata port multiplier should be avoided. 

    Is there any specific reason? 

    Perhaps because of the bandwidth? 

    Recommended controllers for Unraid

    in Storage Devices and Controllers

    Posted

    56 minutes ago, ChatNoir said:

    I don't think you can expect more than 6 SATA ports on a x1 PCIE without some kind of port multiplier. So 10 or 20 is taking a big risk on transfer speed and dropped connections.

    This is the reason, why I plan to buy PCI-E X4 version. Over PCI-E 2.0 X4 has 2000 MB/s of bandwidth available, so it will give  plenty of transfer speed.

    I plan to connect all 8 drives to the PCI-E SATA card.

     

    On motherboard SATA a system drive and a DVD writer is attached.

     

    Recommended controllers for Unraid

    in Storage Devices and Controllers

    Posted · Edited by klor
    Chipsets

    I have a Gigabyte 970A-DS3P motherboard with PCI-E 2.0 support, with 2 PCI Express x16 slots. 

     

    I plan to order "PCIE 4X with 10 SATA port" card version from this website:

    PCI-E Sata Adapter 4X PCIE Sata PCI Express Expansion Card with 10 Ports PCIE3.0 (using ASM1166+JMB585 chipset):

    https://a.aliexpress.com/_mOKtbzq

     

    Another nominate card could be this one:

    PCIE SATA Card SATA 3.0 PCIe Card, PCIe To SATA Controller Expansion Card with 16 Ports (using ASM1064 x 4 chipset):

    https://a.aliexpress.com/_mK9YdS0

     

    I need 6 disks for RAID6 + 2 for spare disks, so 8 ports could be enough, but for future flexibility I'm looking for card with 10-16 SATA ports.

    Since PCI-E 2.0 X1 is slow, I choose PCI-E 2.0 X4 card version, it should be enough. 

     

    Which card will work with my motherboard? 

    Which card is better and why? 

     

     

    Thanks!