Questions tagged [scsi]

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Detect SCSI signals using netlink sockets

I'm trying to detect any SCSI signals sent from the kernel using netlink. Usually I would use udev hooks but I'm trying to detect the addition or removal of hard drives from a RAID controller and udev ...
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device order through open-iscsi

I recently added a logical volume to an iSCSI target, which already had at least one volume, and which had a login from a Linux (Mint) host running Open-iSCSI. I then re-scanned the target on the host,...
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Inrush current from a hard disk upsets other connected drives in a computer?

I have a lab computer I built to run VM's and that can cater for old and new hardware devices to help me with my job. It contains a fair amount of hardware, some of which doesn't need to be on all of ...
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Can I skip a connection on an internal U320 SCCI Cable

Can I skip a connection on an internal U320 SCSI Cable. Like skip the first connection to get more length from a cable?
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Has anyone Experience with DELL OPTIPLEX 9020 MT with Ubunutu 20.04 and 2 SCSI Cards?

I play with the idea to buy a DELL OPTIPLEX 9020 MT like this one here DELL_SPEC-Motherboard to run a server and it should be equipped out with one SAS SCSI CARD and one SCSI Card (68pin connector) ...
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1 vote
1 answer
473 views

in a virtual machine with ssd (solid state) hard drive how can create a hdd hard drive?

in a virtual machine with ssd (solid state drive) can we create a hard disk with hdd (hard disk drive) type? i installed windows 10 on vmware workstation and its hard disk is nvme and ssd. i created ...
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3 answers
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Sata showing as ACASI SCSI drive

I have a western digital blue 500gb 2.5inch in an external USB 3 case. it's showing as an ACASI SCSI drive in win 10 disk management (all other drives are showing as sata). All is fine when using it ...
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2 votes
1 answer
236 views

Can I Use a Parallel Cable With Two Male Ends As a SCSI Cable?

I have an old SCSI Zip Drive that I want to use with my old Macintosh Plus as a replacement for a HDD. The Zip Drive has two female DB-25 SCSI ports on it, one for connecting to the computer, and the ...
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Using QEMU to emulate DOS with passthrough SCSI access?

I'd like to use QEMU to emulate an MS-DOS system that will run a very specific proprietary software that needs to talk to a SCSI tape device. I see that QEMU offers passthrough access to the host ...
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1 answer
196 views

how to securely delete a file from ufs device in linux

Assuming I have some files stored on a ufs storage chip and I mounted it on linux. Is there any possible way to securely delete these file?
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blk_update_request: critical medium error, but hdparm is successful

I apologize for the long post; the tl;dr version is that I got a couple of "critical medium error" messages in dmesg, but hdparm is able to read the affected sectors just fine. What gives?! Read on ...
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How to connect a USB to SCSI-2 adapter to a SCSI-1 50 Pin Centronics Tape Drive?

I currently have a tape drive that looks like: where the right side is a SCSI-1 50 Pin interface. I have at my disposal a few USB to SCSI-2 adapters, such as the iomega scsi to usb adapter, and the ...
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2 votes
1 answer
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How to connect an old SCSI Tandberg QIC tape drive with current systems?

I currently have a ton of QIC-250MB tapes that I would like to read from (its been 30 years). I have a Tandberg TDC 3600 SCSI interfaced tape drive but I am lost how to connect it. In the past, with ...
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1 answer
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Why my Hyper-V converts the disk to SCSI

I have a SATA disk, and I installed Windows 10 on it. After I enabled Hyper-V, I created some virtual machines. However the VM all see an SCSI disk, and I can't find out how to change it. Even the ...
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1 vote
3 answers
9k views

Reading data from an old SCSI hard drive

My girlfriend has an old computer that she didn't use for MANY years. It has some important pictures on its hard drive, so I tried to access that data. The HDD is an old Seagate ST34520W with a 68pin ...
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Too many paths - impact on FC performance

I heard that too many paths could result in impact of storage infrastructure performance. Can somebody please answer why? This is not regarding number of paths for a single server, but looking at ...
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iostat equivalent for SCSI generic devices /dev/sg

Is there any equivalent tool of iostat with which i can monitor I/O load on SCSI generic devices that do not have a block device? I am interested in : operations per second reads/writes/others ...
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How to securely erase HPA, DCO, and any bad sectors of a SCSI HDD

Does dd if=/dev/zero of =/dev/cciss/c0d0 bs=1M wipe over the HPA, DCO, and any bad sectors?
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How to connect SCSI-2 External Hard Drive with HD50 connector to PC?

Is there a way I could connect my HD50-connector SCSI2 external hard drive to a PC and have it recognize it as a standard drive? I would like to avoid solutions like the extremely rare and expensive ...
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Is there a way to convert VirtualBox .vdi harddisk from SATA to SCSI?

I have a virtualbox virtual SATA harddrive and need to convert it to SCSI (lsi). Is there a possibility how to do it with VBoxManage? I cannot find it in the documentation. I've also tried it by ...
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1 answer
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How to get the SCSI identifier by scsi_id command?

I never want to change the SCSI disk's name(/dev/sd*) even if the one of disks has been removed. Good article I found on Internet says that "Use the scsi_id command to get the unique SCSI identifier,...
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1 answer
633 views

Is it possible to make a USB flash drive with just 1KB of storage?

Introduction On a USB device I am developing, I want to offer a USB Mass Storage endpoint for configuration updates. The device is connected internally via a USB pin header, and to update the ...
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2 votes
1 answer
502 views

How to run windows command line when getting diskless boot error?

I am using diskless boot Windows 7 with iPXE. PC is intended to boot from vhdx, which i obtained by snapshotting sata(ahci) hard drive with sysiternals disk2vhd utility. Hard drive was previously in ...
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SSD is not detected if inserted after bootup in redhat Linux

I am working on redhat linux system and it is not detecting Solid state disk(not working as hot plugging) if i insert it after boot up. If the SSD's are present before booting up of system then those ...
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How to configure iSCSI Redirection on either Linux or Windows?

I am trying to set up an iSCSI redirection environmnt. First I tried with Windows Server 2012 following this video. But it seems the Windows Server 2012 doesn't provide the iSCSI redirection feature. ...
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2 answers
1k views

Why is my tape drive so slow?

I have bought a used Quantum Ultrium LTO-4 tape drive and attached it to an HP Smart Array P400 SAS controller in my HP ProLiant N54l. I use FreeBSD 11 as my operating system. Now I have inserted a ...
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How to run chromium os on Hyper‑V without compiling anything?

Since Windows 8, Hyper‑V supports booting uefi systems provided the hard drive is emulated under an scsi controller, the result is if I download a build from http://chromium.arnoldthebat.co.uk/ ...
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2 votes
1 answer
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Accessing ironkey from command-line Linux system

So, this USB-key device (which registers as a CD-ROM / SCSI-device; weird, I know), which ships with a read-only partition (kinda?) including a Linux binary you need to execute to access to the data-...
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Why aren't there any SCSI drivers for my install of UBUNTU 16.10 on my poweredge 2650

I was gifted a server, and I am trying to install Ubuntu 16.10 on it(dell poweredge 2650) and regardless of if I try to install Debian or Ubuntu I continue to run into the same issue; my scsi drives ...
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1 vote
1 answer
568 views

How to add a SCSI disk to share between two Server 2012 in Vmware?

I'm trying to add a second disk as SCSI to Windows Server 2012. This disk has to be accessible to another Server 2012 for some load-balancing purposes. How do I create such second disk and share it ...
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Connecting a 64 pin SCSI Drive to a Linux system

I have an old SCSI drive with a 64 pin connector that I had attached to an SGI machine and I would like to connect it directly to my Linux machine (SuperMicro Server). Is there an adaptor cable that ...
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1 vote
1 answer
943 views

VM to VirtualBox converted image - Could not find a storage controller named 'SCSI Controller' error

I converted a VMDK to an ovf image using ovftool. The VMDK had a SCSI disk. Now post conversion Virtual Box isn't able to import it - it gets the error Could not find a storage controller named '...
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Qlogic qla2xxx fibre channel HBA not displayed by targetcli

I'm experimenting with FC with a view to setting up a SAN but appear to be stuck at the first hurdle - I can't seem to get targetcli to give me the option of using my qla2xxx card as a target. I've ...
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USB drive not getting recognized as scsi device in custom linux kernel

I am facing a slow write speed problem with a USB drive in my custom linux kernel. I suspected to be a hardware problem but with the same hardware and Opensuse 12.1 OS, write speed of my USB drive is ...
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1 answer
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Raw reading USB mass storage or SCSI

Wife's USB HDD has a slight issue where a folder refuses to open (NTFS filesystem). I have been able to image the drive with Linux but for one sector (sectors are 4096 bytes). Reading that sector ...
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2 votes
2 answers
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What is the maximum SCSI LUN size?

What is the maximum size of single (i)SCSI LUN from perspective of SCSI protocol, what is the limit?
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External scsi tape: before server?

I have an old 2600 rx HP server and an external tape DAT drive which ised wide SCSI (68 pins). Do I have to power on the tape before the server, or is it the same if I power on the tape after turning ...
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Attach Cloud Storage as External Drive to Windows

I am looking to use a Cloud Storage provider as an attached drive on Windows Server 2008, kind of like an iSCSI storage device. I downloaded Google Drive which created a new folder on my system, but ...
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1 vote
2 answers
4k views

Attaching SCSI drive through USB

I have a number of wide, 68-pin SCSI drives for which I need to copy the data off. I have tried to use a wide-to-narrow SCSI adapter (68-pin to 50-pin) coupled with an Adaptec SCSI-to-USB adapter (50-...
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4 votes
2 answers
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Dangers of using external power source with internal hard drive

Is it okay to connect a internal hard drive (IDE/SATA/SCSI) to an internal controller (e.g. on-board the motherboard) and supply the power via another power supply or an external unit like the one ...
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How to connect Ultrium 460 tape drive? (Ultra320 SCSI)

I have the opportunity to get, for nothing, an Ultrium 460 tape drive, and LOTS of tapes, which would give me enormous amounts of storage space to frivolously use on nothing at all. The problem is ...
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602 views

Is SCSI asynchronous IO really slower than synchronous one?

I am completely confused with what I had just read on these two pages: http://www.scsifaq.org/scsifaq.html#_Hlk410546176 http://www.cse.scu.edu/~tschwarz/coen180/LN/scsi.html Both claim that SCSI ...
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probe-scsi-all shows two disks with the same PhyNum

I'm attempting to remotely determine the physical location of two disks in an Oracle SPARC T4-1 server prior to performing a Solaris install. Because the disks use World Wide Names (WWNs), the Oracle ...
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What types of SCSI connectors are these?

I was given an old server and old storage array, and told that they go together. My boss wants me to gain access and migrate all the old data to our current file server. Knowing basically zilch about ...
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Can I turn off external SCSI tape drive?

I have a couple of external tape drives connected to a server (Ultra320 SCSI). I do not use them frequently, but they are on all the time collecting dust (because of the fans). If I turned them off (...
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Linux dynamic SCSI device naming

When linux boots up, it assigns SCSI drives to various sd* names, in increasing alphabetical order. If I remove some drives (while the system is running) and re-add them, is it guaranteed that the old ...
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1 vote
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748 views

dd SCSI image into VirtualBox

I have a very old Linux box (actually dating from 1998) wich used to run a legacy system. The system was discontinued, but the data must be available for consults. My idea was to make a image from the ...
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Duplicate SCSI HHD to SATA SSD

I got the Cavalry Dual Bay SATA Hard Drive Duplicator Docking Station and it works great when I Clone/Duplicate SATA Hard Drives but I have a couple of SCSI HHDs that I want to Clone/Duplicate but the ...
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2 votes
2 answers
107 views

Cache of SCSI disk

I have a SCSI controller (HP Smart Array 642), using cciss driver on Linux, which is connected to several SCSI disks. I am trying to optimize the communication between these devices and came to the ...
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What are these SCSI connection types?

Simply put, what's the difference between these two SCSI connections? The top one comes out of an IBM x Series server and the bottom one comes out of a Dell PowerEdge (I beleive). Are these typical ...
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