[Info-vax] 3rd party SATA SSD usage on RX2660+P400 in a production environment?

[Hans Vlems]

Op zondag 30 juni 2019 16:47:55 UTC+2 schreef Michael Moroney:
> Hans Vlems <jhlmvlems at gmail.com> writes:
> 
> >Rod, 
> >I put a Samsung 850 250 GB SSD on an RX3600 which uses an HP LSISAS106x controller. SHO DEV showed tht the SSD was recognised for what it was 
> >but it was not possible to INIT the disk, nor mount it foreign.
> >In both cases the error message was %MNT-F-ABORT, aborted
> >Hans
> 
> Is this a 4k block only size device? If so, it certainly won't work on VMS.
> 
> Otherwise, I don't know anything of the driver involve.

Not sure what went wrong last Sunday, though this is what I did (again):
- boot the rx3600
- dismount a data disk: DKA300
- exchange the 72 GB HP disk with the 850 EVO 250 GB SSD
- mc sysman io auto       ! followed by a
  sho dev dka300/full     ! which still identifies itself as an HP drive
The big difference is that an init/sys dka300 did work as well as mounting the SSD. Next I compared an image backup from a 72 GB hard disk to a similar drive (dka100), this took 1'36 for 307881 blocks. The same command directed at the SSD took 27 seconds. More than 3 times faster.

$ mc sys$etc:scsi_info dka300:
$!
$! SCSI_INFO V3
$!
$!      Copyright (c) 1995 by DIGITAL Equipment Corporation, Maynard, Mass.
$!      All Rights Reserved. Unpublished rights reserved under the copyright
$!      laws of the United States.
$!
$! Issuing INQUIRY QIOW
$!
$!   SCSI Inquiry Data (74 bytes) :
$!
$!      000:  00 00 05 12 45 00 00 02 41 54 41 20 20 20 20 20
$!      010:  53 61 6D 73 75 6E 67 20 53 53 44 20 38 35 30 20
$!      020:  32 42 36 51 53 32 52 36 4E 42 30 4A 42 35 31 34
$!      030:  35 37 57 20 20 20 20 20 00 00 00 77 1E A0 03 00
$!      040:  03 20 0B FD 16 00 00 00 00 00
$!
$!      Peripheral Device Type : Direct Access
$!
$!      Peripheral Device Qualifier :
$!
$!              Peripheral device type supported & connected to target
$!
$!      Vendor Identification : ATA
$!
$!      Product Identification: Samsung SSD 850
$!
$!      Product Revision Level: 2B6Q
$!
$!      ANSI Information:
$!
$!              Reserved
$!
$!      ISO Information:
$!
$!              0 - does not claim ISO SCSI (ISO IS 9316) compliance
$!
$!      ECMA Information:
$!
$!              0 - does not claim ECMA SCSI (ECMA-111) compliance
$!
$!      Removable Media: No
$!
$!      AEN Capability: No
$!
$!      Command Queuing: Yes
$!
$!      16-Bit Wide Bus Data Transfers: No
$!
$!      32-Bit Wide Bus Data Transfers: No
$!
$!      Linked Commands: No
$!
$!      Soft Reset Alternative: No
$!
$!      Relative Addressing: No
$!
$!      Synchronous Data Transfers: No
$!

Hans