HP Smart Storage Admin CLI (ssacli) installation and usage on Proxmox PVE (6.x)

PVE-HP-ssacli-smart-storage-admin.md

HP Smart Storage Admin CLI (ssacli) installation and usage on Proxmox PVE (6.x)

Why use HP Smart Storage Admin CLI?

You can use ssacli (smart storage administrator command line interface) tool to manage any of supported HP Smart Array Controllers in your Proxmox host without need to reboot your server to access Smart Storage Administrator in BIOS. That means no host downtime when managing your storage.

CLI is not as convenient as GUI interface provided by BIOS or desktop utilities, but still allows you to fully manage your controller, physical disks and logical drives on the fly with no Proxmox host downtime.

ssacli replaces older hpssacli, but shares the same syntax and adds support for newer servers and controllers.

Installation

Installation process of the ssacli package on Proxmox is the same as on any other Debian based system.

NOTE: HP does not provide Buster repository for Debian 10/Proxmox 6.x, but we can still use Stretch repository even that it's targeted for Debian 9/Proxmox 5.x.

Add HP's MCP repository

To add HP's MCP repository to apt sources list use this command:

echo "deb http://downloads.linux.hpe.com/SDR/repo/mcp stretch/current non-free" > /etc/apt/sources.list.d/hp-mcp.list

Download and add public keys for the MCP repository

Public keys are needed by apt to verify repository signatures, so we need to download and add them. There are four of them and we need to download and them all:

wget -q -O - http://downloads.linux.hpe.com/SDR/hpPublicKey1024.pub | apt-key add -
wget -q -O - http://downloads.linux.hpe.com/SDR/hpPublicKey2048.pub | apt-key add -
wget -q -O - http://downloads.linux.hpe.com/SDR/hpPublicKey2048_key1.pub | apt-key add -
wget -q -O - http://downloads.linux.hpe.com/SDR/hpePublicKey2048_key1.pub | apt-key add -

Installing the ssacli package

First, we need to update available packages:

apt update

And then we can install the ssacli package:

apt install ssacli

Using the ssacli tool

Command short and long names All commands have a short name to reduce the length of the total input provided to the ssacli tool. You can use short or long name. Here is a list of all commands and their long and short names:

• chassisname = ch
• controller = ctrl
• logicaldrive = ld
• physicaldrive = pd
• drivewritecache = dwc
• licensekey = lk

You can specify disks also as:

• A range of drives (bay 1 to 3): 1I:1:1-1I:1:3
• Drives that are unassigned: allunassigned

Command examples

Here are few examples of ssacli commands that you can use to diagnose and manage your HP Smart Storage Controller.

Show available controllers

ssacli ctrl all show

Show controllers status

ssacli ctrl all show status

Show detailed controllers information

ssacli ctrl all show detail

Show controllers configuration

ssacli ctrl all show config

Rescan for new devices Useful after swapping disks in bays, etc...

ssacli rescan

Show all physical disks (or their status) (controller slot 0)

ssacli ctrl slot=0 pd all show
ssacli ctrl slot=0 pd all show status

Show all physical disks detailed information (controller slot 0)

ssacli ctrl slot=0 pd all show detail

Show logical drives (or their status) (controller slot 0, all or specific logical drive(s))

ssacli ctrl slot=0 ld all show
ssacli ctrl slot=0 ld all show status

ssacli ctrl slot=0 ld 1 show
ssacli ctrl slot=0 ld 1 show status

Show detailed logical drives information (controller slot 0, all or specific logical drive(s))

ssacli ctrl slot=0 ld all show detail
ssacli ctrl slot=0 ld 1 show detail

Show array information (controller slot 0, array A)

ssacli ctrl slot=0 array a show

Show array status (controller slot 0, all arrays)

ssacli ctrl slot=0 array all show status

Create new RAID 0 logical drive (controller slot 0, disk in port 1I:box 1:bay 1)

ssacli ctrl slot=0 create type=ld drives=1I:1:1 raid=0

Create new RAID 1 logical drive (controller slot 0, disks in port 1I:box 1:bay 1 and 2)

ssacli ctrl slot=0 create type=ld drives=1I:1:1,1I:1:2 raid=1

Create new RAID 5 logical drive (controller slot 0, diks in port 1I:box 1:bay 1 to 4)

ssacli ctrl slot=0 create type=ld drives=1I:1:1-1I:1:4 raid=5

Delete logical drive (controller slot 0, logical drive 1)

ssacli ctrl slot=0 ld 1 delete

Add new physical disks to logical drive (controller slot 0, logical drive 1, disks in port 1I:box 1:bay 6 and 7)

ssacli ctrl slot=0 ld 2 add drives=1I:1:6,1I:1:7

Add spare disks (controller slot 0, logical drive 1, array A, disks in port 1I:box 1:bay 6 and 7)

ssacli ctrl slot=0 array a add spares=1I:1:6,1I:1:7

Add global spare disks (controller slot 0, logical drive 1, all arrays, disks in port 1I:box 1:bay 6 and 7)

ssacli ctrl slot=0 array all add spares=1I:1:6,1I:1:7

Turn on/off blink logical drive LED (controller slot 0, logical drive 1)

ssacli ctrl slot=0 ld 1 modify led=on
ssacli ctrl slot=0 ld 1 modify led=off

Turn on/off blink physical disk LED (controller slot 0, physical disk port 1I:box 1:bay 1)

ssacli ctrl slot=0 pd 1I:1:1 modify led=on
ssacli ctrl slot=0 pd 1I:1:1 modify led=off

Modify smart array cache read and write ratio (controller slot 0, cacheratio 80% read/20% write)

ssacli ctrl slot=0 modify cacheratio=80/20

Show physical drive write cache status (controller slot 0)

ssacli ctrl slot=0 modify dwc=?

Enable/disable physical drive write cache (controller slot 0) Important: Because physical drive write cache is not battery-backed, you could lose data if a power failure occurs during a write process. To minimize this possibility, use a backup power supply.

ssacli ctrl slot=0 modify dwc=enable
ssacli ctrl slot=0 modify dwc=disable

Show status of smart array write cache when no battery is present (no-battery write cache option, controller slot 0)

ssacli ctrl slot=0 modify nbwc=?

Enable/disable smart array write cache when no battery is present (no-battery write cache option, controller slot 0)

ssacli ctrl slot=0 modify nbwc=enable
ssacli ctrl slot=0 modify nbwc=disable

Enable/disable smart array cache for certain Logical Volume (controller slot 0, logical drive 1)

ssacli ctrl slot=0 ld 1 modify arrayaccelerator=enable
ssacli ctrl slot=0 ld 1 modify arrayaccelerator=disable

Enable/disable SSD Smart Path (controller slot 0, array A)

ssacli ctrl slot=0 array a modify ssdsmartpath=enable
ssacli ctrl slot=0 array a modify ssdsmartpath=disable

Show spare activation mode

ssacli ctrl slot=0 modify spareactivationmode=?

Set spare activation mode

ssacli ctrl slot=0 modify spareactivationmode=predictive
ssacli ctrl slot=0 modify spareactivationmode=failure

Show rebuild priority

ssacli ctrl slot=0 modify rp=?

Modify rebuild priority

ssacli ctrl slot=0 modify rp=low
ssacli ctrl slot=0 modify rp=medium
ssacli ctrl slot=0 modify rp=mediumhigh
ssacli ctrl slot=0 modify rp=high

Erase Physical Drive (controller slot 0, physical disk port 1I:box 1:bay 1)

ssacli ctrl slot=0 pd 1I:1:1 modify erase

Hi ALL, FYI

found this: http://downloads.linux.hpe.com/SDR/repo/mcp/Debian/pool/non-free/

this has different versions for ssacli command as deb packages

tried version 4.17-6.0

on Proxmox version: pve-manager/7.0-10/d2f465d3 (running kernel: 5.11.22-2-pve)

this worked fine for me ....

Is it safe to use ssacli with P420i when I have Proxmox installed on one of the volumes this controller creates?

Is it safe to use ssacli with P420i when I have Proxmox installed on one of the volumes this controller creates?

yes it works here a treat and very helpful!

Hi ALL, FYI

found this: http://downloads.linux.hpe.com/SDR/repo/mcp/Debian/pool/non-free/

this has different versions for ssacli command as deb packages

tried version 4.17-6.0

on Proxmox version: pve-manager/7.0-10/d2f465d3 (running kernel: 5.11.22-2-pve)

this worked fine for me ....

if you follow the steps above and change stretch to buster, that also installs the latest version (5.10-44.0) 👍

MY UPDATED GIST VERSION: https://gist.github.com/si458/2fc70d5c807697537be6264025c3b554

Hey there,
is it somehow possible to read the current Status of the Drive LED - if it's ON or OFF?
thx

I found this a very helpful markdown, however 22.04 LTS (in my case Pop!_OS but based on ubuntu) has deprecated the portion with installation instructions above;
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).

in case it is helpful to anyone I have written an installer script as i have a few more systems to get to later that also need updating or controllers installed. (I use zsh but you may prefer to edit to bash or other as needed)
https://github.com/professorcheechi/installssa/

on my Prox 7.1 I used alien with the rpm to install ssacli, but i wanted an automated solution.

Hello. Does any know how I can get the disk i/o counters from the controller? I'm guessing ssacli is mostly used to manage the controller, not to get counters/metrics.

how to check raid in Linux Debian 10? In centos, we would use hpacucli which doesn't work in debian. Any idea how to use in Debian?

I think there's a typo here? This is the only command where the logical drive 1 does not match ld 1 and is instead listed as ld 2.

Add new physical disks to logical drive (controller slot 0, logical drive 1, disks in port 1I:box 1:bay 6 and 7)

ssacli ctrl slot=0 ld 2 add drives=1I:1:6,1I:1:7

Should that read

Add new physical disks to logical drive (controller slot 0, logical drive 1, disks in port 1I:box 1:bay 6 and 7)

ssacli ctrl slot=0 ld 1 add drives=1I:1:6,1I:1:7

If you don't want to use HBA/Hardware Raid you can set your HP Raid controller to HBA mode = on with HP Smart Storage Admin. I am missing the commands in this documentation:

If your Smart Array controller designation begins with the letter P, such as the P420i:

sudo ssacli controller slot=0 modify hbamode=on

Else, if your HBA controller designation begins with the letter H, such as the H240:

sudo ssacli controller slot=0 modify raidmode=off

You should be all set. You can run ssacli controller slot=0 show to confirm that your changes have been made.

To install on Ubuntu Server 22.04 (no apt-key)

echo "deb http://downloads.linux.hpe.com/SDR/repo/mcp jammy/current non-free" > /etc/apt/sources.list.d/hp-mcp.list

wget -q -O - https://downloads.linux.hpe.com/SDR/hpPublicKey1024.pub | gpg --dearmor > /etc/apt/trusted.gpg.d/hpPublicKey1024.gpg
wget -q -O - https://downloads.linux.hpe.com/SDR/hpPublicKey2048.pub | gpg --dearmor > /etc/apt/trusted.gpg.d/hpPublicKey2048.gpg
wget -q -O - https://downloads.linux.hpe.com/SDR/hpPublicKey2048_key1.pub | gpg --dearmor > /etc/apt/trusted.gpg.d/hpPublicKey2048_key1.gpg
wget -q -O - https://downloads.linux.hpe.com/SDR/hpePublicKey2048_key1.pub | gpg --dearmor > /etc/apt/trusted.gpg.d/hpePublicKey2048_key1.gpg

apt update
apt install ssacli

for Proxmox 8 on Debian 12 (bookworm)

echo "deb http://downloads.linux.hpe.com/SDR/repo/mcp bookworm/current non-free" > /etc/apt/sources.list.d/hp-mcp.list

wget -q -O - https://downloads.linux.hpe.com/SDR/hpPublicKey1024.pub | gpg --dearmor > /etc/apt/trusted.gpg.d/hpPublicKey1024.gpg
wget -q -O - https://downloads.linux.hpe.com/SDR/hpPublicKey2048.pub | gpg --dearmor > /etc/apt/trusted.gpg.d/hpPublicKey2048.gpg
wget -q -O - https://downloads.linux.hpe.com/SDR/hpPublicKey2048_key1.pub | gpg --dearmor > /etc/apt/trusted.gpg.d/hpPublicKey2048_key1.gpg
wget -q -O - https://downloads.linux.hpe.com/SDR/hpePublicKey2048_key1.pub | gpg --dearmor > /etc/apt/trusted.gpg.d/hpePublicKey2048_key1.gpg

apt update
apt install ssacli

edit, works with DL360 Gen10 with P408i controller

For Proxmox 8 (Debian bookworm), confirmed to be working on HP DL380 gen 9 using Smart HBA H240

echo "deb http://downloads.linux.hpe.com/SDR/repo/mcp bookworm/current non-free" > /etc/apt/sources.list.d/hp-mcp.list

Further as per the post from @Alex-Covecube

Hello,
I am on HP DL385 Gen10 Plus V2 with HP 416a-i Tri-mode controller in RAID 1 for OS and RAID-0 for the other drives. with Proxmox 8.1.3

but i get error - no controllers detected possible causes: ....
I have done modprobe sg to load the scsi generic module ? see the attached screenshot.

Thanks in advance.

this one helped me:
ssacli controller slot=0 physicaldrive 1I:1:1 modify clearconfigdata
to clear old raid configuration remained in disk

Got it working on Proliant DL360 GEN9 Smart Array P440ar.

ssacli version

SSACLI Version: 6.15.11.0 2022-11-01
SOULAPI Version: 6.15.11.0 2022-11-01

Unfortunately I am on DL385 Gen10 Plus V2 on 416i controller and it does nothing no response on running ssacli <https://www.deepcloud.in/> <https://www.deepcloud.in> Arpan Arora Co-Founder and Director DeepCloud Pvt. Ltd <https://www.deepcloud.in> [image: phone] +919141414242 <https://wa.me/919141414242> [image: envelope] ***@***.*** [image: globe] https://www.deepcloud.in [image: facebook] <https://www.facebook.com/Deep-Cloud-103834609063642> [image: instagram] <https://www.instagram.com/deepcloudin/> [image: twitter] <https://twitter.com/deepcloudin> [image: linkedin] <https://www.linkedin.com/company/deep-cloud-private-limited> [image: youtube] <https://www.youtube.com/channel/UCet1cLBf9CiZVKREkRkVgrA> [image: Email Badge] <https://emailbadge.com/?utm_source=signature>

…

On Sat, 17 Feb 2024 at 3:05 AM, jmacis ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ Got it working on Proliant DL360 GEN9 Smart Array P440ar. ssacli version SSACLI Version: 6.15.11.0 2022-11-01 SOULAPI Version: 6.15.11.0 2022-11-01 — Reply to this email directly, view it on GitHub <https://gist.github.com/mrpeardotnet/a9ce41da99936c0175600f484fa20d03#gistcomment-4906937> or unsubscribe <https://github.com/notifications/unsubscribe-auth/BFDO6WWN2OBQMEIWRDJUT2DYT6UX7BFKMF2HI4TJMJ2XIZLTSKBKK5TBNR2WLJDUOJ2WLJDOMFWWLO3UNBZGKYLEL5YGC4TUNFRWS4DBNZ2F6YLDORUXM2LUPGBKK5TBNR2WLJDHNFZXJJDOMFWWLK3UNBZGKYLEL52HS4DFVRZXKYTKMVRXIX3UPFYGLK2HNFZXIQ3PNVWWK3TUUZ2G64DJMNZZDAVEOR4XAZNEM5UXG5FFOZQWY5LFVA4TSNRXG4YTONNHORZGSZ3HMVZKMY3SMVQXIZI> . You are receiving this email because you commented on the thread. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub> .

I am having the same problem as deepcloudindia - a error saying that the driver has not been installed.

Anyone have any suggestions?

Hello.
I have problem with my new bought h240 controller. It's working in Pcie 3.0 x1 mode ( " Negotiated PCIe Data Rate: PCIe 3.0 x1 (985 MB/s)" ) and i think that it should be working "a little" bit faster. Do anyone know how to fix this problem?

It was very helpful for me with DL180G6+P410
Thanks very much.

Hi ,
I have 100+ servers and need to define raid 0 for all before using kickstart script for running OS ,
Is there any solution using "ssacli" to define a raid for them without having an OS ?
a command like : " perl locfg.pl -s HOSTNAME -f FILE.xml" that we use for working with ilo?

I'm also having trouble with ssacli and a P222 installed within a Microserver Gen 8.
lsmod shows hpsa as installed. Any pointers greatly appreciated.

I am new to HP servers and Raid Arrays, I have learnt a lot over the last days.
I have a HP Proliant DL360 Gen9 server, I have a raid 6 configured with 5 disks at the moment and tried to add 3 more disks.
The issue I ran into was after the ILO update, I could not open the Smart Array Management from the reboot.
I have now installed ssacli on the server and have access to the disk management but I run into an issue that I do not understand. when trying to add the disks to the current array, I get the following error.
This is what I have.
Array A (SAS, Unused Space: 1 MB)

  logicaldrive 1 (3.27 TB, RAID 6, OK)

  physicaldrive 1I:1:2 (port 1I:box 1:bay 2, SAS HDD, 1.2 TB, OK)
  physicaldrive 1I:1:4 (port 1I:box 1:bay 4, SAS HDD, 1.2 TB, OK)
  physicaldrive 2I:1:6 (port 2I:box 1:bay 6, SAS HDD, 1.2 TB, OK)
  physicaldrive 2I:1:7 (port 2I:box 1:bay 7, SAS HDD, 1.2 TB, OK)
  physicaldrive 2I:1:8 (port 2I:box 1:bay 8, SAS HDD, 1.2 TB, OK)

Unassigned

  physicaldrive 1I:1:1 (port 1I:box 1:bay 1, SAS HDD, 1.2 TB, OK)
  physicaldrive 1I:1:3 (port 1I:box 1:bay 3, SAS HDD, 1.2 TB, OK)
  physicaldrive 2I:1:5 (port 2I:box 1:bay 5, SAS HDD, 1.2 TB, OK)

This is what I am trying,
ssacli ctrl slot=0 array A add drives=1I:1:1,1I:1:3,2I:1:5

Error: This operation is not supported with the current configuration. Use the
"show" command on devices to show additional details about the
configuration.
Reason: Transformation size zero. This may indicate that there is no
cache backup power source or a failed backup power source on the
controller.

Anyone tell me why this is happening. What has a backup power supply got to do with adding disks to an array?
Thanks
Lawrence

I've updated the commands a bit to mitigate the apt-key depreciation. Hope it helps!

Tested on Debian Bookworm.

wget http://downloads.linux.hpe.com/SDR/hpPublicKey1024.pub
wget http://downloads.linux.hpe.com/SDR/hpPublicKey2048.pub
wget http://downloads.linux.hpe.com/SDR/hpPublicKey2048_key1.pub
wget http://downloads.linux.hpe.com/SDR/hpePublicKey2048_key1.pub
gpg --no-default-keyring --keyring ./temp-keyring.gpg --import hpPublicKey1024.pub
gpg --no-default-keyring --keyring ./temp-keyring.gpg --export --output hpPublicKey1024.gpg
gpg --no-default-keyring --keyring ./temp-keyring.gpg --import hpPublicKey2048.pub
gpg --no-default-keyring --keyring ./temp-keyring.gpg --export --output hpPublicKey2048.gpg
gpg --no-default-keyring --keyring ./temp-keyring.gpg --import hpPublicKey2048_key1.pub
gpg --no-default-keyring --keyring ./temp-keyring.gpg --export --output hpPublicKey2048_key1.gpg
gpg --no-default-keyring --keyring ./temp-keyring.gpg --import hpePublicKey2048_key1.pub
gpg --no-default-keyring --keyring ./temp-keyring.gpg --export --output hpePublicKey2048_key1.gpg
rm hpPublicKey1024.pub hpPublicKey2048.pub hpPublicKey2048_key1.pub hpePublicKey2048_key1.pub temp-keyring.gpg temp-keyring.gpg~
mkdir -p /etc/apt/keyrings
mv -f hpPublicKey1024.gpg hpPublicKey2048.gpg hpPublicKey2048_key1.gpg hpePublicKey2048_key1.gpg /etc/apt/keyrings/
echo "deb [signed-by=/etc/apt/keyrings/hpPublicKey1024.gpg,/etc/apt/keyrings/hpPublicKey2048.gpg,/etc/apt/keyrings/hpPublicKey2048_key1.gpg,/etc/apt/keyrings/hpePublicKey2048_key1.gpg] http://downloads.linux.hpe.com/SDR/repo/mcp stretch/current non-free" > /etc/apt/sources.list.d/hp-mcp.list
apt update
apt install ssacli -y

I

I've updated the commands a bit to mitigate the apt-key depreciation. Hope it helps!

Tested on Debian Bookworm.

wget http://downloads.linux.hpe.com/SDR/hpPublicKey1024.pub
wget http://downloads.linux.hpe.com/SDR/hpPublicKey2048.pub
wget http://downloads.linux.hpe.com/SDR/hpPublicKey2048_key1.pub
wget http://downloads.linux.hpe.com/SDR/hpePublicKey2048_key1.pub
gpg --no-default-keyring --keyring ./temp-keyring.gpg --import hpPublicKey1024.pub
gpg --no-default-keyring --keyring ./temp-keyring.gpg --export --output hpPublicKey1024.gpg
gpg --no-default-keyring --keyring ./temp-keyring.gpg --import hpPublicKey2048.pub
gpg --no-default-keyring --keyring ./temp-keyring.gpg --export --output hpPublicKey2048.gpg
gpg --no-default-keyring --keyring ./temp-keyring.gpg --import hpPublicKey2048_key1.pub
gpg --no-default-keyring --keyring ./temp-keyring.gpg --export --output hpPublicKey2048_key1.gpg
gpg --no-default-keyring --keyring ./temp-keyring.gpg --import hpePublicKey2048_key1.pub
gpg --no-default-keyring --keyring ./temp-keyring.gpg --export --output hpePublicKey2048_key1.gpg
rm hpPublicKey1024.pub hpPublicKey2048.pub hpPublicKey2048_key1.pub hpePublicKey2048_key1.pub temp-keyring.gpg temp-keyring.gpg~
mkdir -p /etc/apt/keyrings
mv -f hpPublicKey1024.gpg hpPublicKey2048.gpg hpPublicKey2048_key1.gpg hpePublicKey2048_key1.gpg /etc/apt/keyrings/
echo "deb [signed-by=/etc/apt/keyrings/hpPublicKey1024.gpg,/etc/apt/keyrings/hpPublicKey2048.gpg,/etc/apt/keyrings/hpPublicKey2048_key1.gpg,/etc/apt/keyrings/hpePublicKey2048_key1.gpg] http://downloads.linux.hpe.com/SDR/repo/mcp stretch/current non-free" > /etc/apt/sources.list.d/hp-mcp.list
apt update
apt install ssacli -y

I am sorry, not that im knowledge linux user, but can you please confirm this line:

echo "deb [signed-by=/etc/apt/keyrings/hpPublicKey1024.gpg,/etc/apt/keyrings/hpPublicKey2048.gpg,/etc/apt/keyrings/hpPublicKey2048_key1.gpg,/etc/apt/keyrings/hpePublicKey2048_key1.gpg] http://downloads.linux.hpe.com/SDR/repo/mcp stretch/current non-free" > /etc/apt/sources.list.d/hp-mcp.list

This URL goes nowhere:

http://downloads.linux.hpe.com/SDR/repo/mcp stretch/current non-free

Should that be:

https://downloads.linux.hpe.com/SDR/repo/mcp/debian/dists/bookworm/current/non-free

Thay stated:

"Notices

To enhance security, please ensure that you access our website using HTTPS rather than HTTP.

We will no longer guarantee access through HTTP. Thank you for your understanding and cooperation."

might be they change also paths too? Im trying to install this on DL380 G7 with P410i. But mine knowledge is so low that i dont dare to do it if its not 1000% correct.

Again,

i dont want to be smart ass, it just look strange to me. And i would someone whos smarter than me confirm.

Thanks

EDIT: Forgive me for my curiosity. I set up another HP DL380 G7, installed Proxmox 8.2 and after install by this guide all works fine. Thank you :)

Same issue here - any pointers?! Thanks!

Hello, I am on HP DL385 Gen10 Plus V2 with HP 416a-i Tri-mode controller in RAID 1 for OS and RAID-0 for the other drives. with Proxmox 8.1.3

but i get error - no controllers detected possible causes: .... I have done modprobe sg to load the scsi generic module ? see the attached screenshot.

Thanks in advance.