Any experience with ATTO ExpressSAS H608?

Discussion in 'RAID Controllers and Host Bus Adapters' started by Jesin A, Oct 30, 2015.

  1. Jesin A

    Jesin A New Member

    Joined:
    Oct 6, 2015
    Messages:
    8
    Likes Received:
    1
    I would like to know if the ATTO ExpressSAS H608 HBA card passes TRIM commands to the SATA SSDs connected to it.

    I asked ATTO directly and this is the reply I got

    The problem is that TRIM is a SATA option while the ATTO SAS HBAs expose devices as SCSI targets. Therefore, TRIM isn't even an option, because it's a different command set. So although you've indicated Pass through Mode ATTO doesn't provide support for the TRIM functions.

    And I thought HBAs presented RAW devices to the operating systems.
     
    #1
  2. Patriot

    Patriot Moderator

    Joined:
    Apr 18, 2011
    Messages:
    1,278
    Likes Received:
    658
    they should support scsi unmap...
     
    #2
  3. Jesin A

    Jesin A New Member

    Joined:
    Oct 6, 2015
    Messages:
    8
    Likes Received:
    1
    So do they convert the UNMAP command to TRIM and pass it to the SATA drives?
     
    #3
Similar Threads: experience ATTO
Forum Title Date
RAID Controllers and Host Bus Adapters Any experience with this PCIe 3.0 RAID card: Atto H6FO-GTO May 21, 2012
RAID Controllers and Host Bus Adapters Any experience with the NEC 9362-8i? Mar 10, 2019
RAID Controllers and Host Bus Adapters any experience with Sun 7014391 SAS Expander Assembly 7023751 X3-2L X4-2L Feb 7, 2019
RAID Controllers and Host Bus Adapters You experiences with HP SAS Expander 12GB/s Oct 30, 2017
RAID Controllers and Host Bus Adapters SAS2 expander with SAS3 controller experiences Mar 30, 2017

Share This Page