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Questions tagged [scsi]

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Why does the Linux SCSI subsystem drive hardware not obviously related to SCSI?

Without knowledge, I would normally expect SATA, SCSI and USB Mass Storage to be driven by different drivers. In Linux however, the SCSI subsystem drives all of them. Why does Linux use the SCSI ...
mcendu's user avatar
  • 523
1 vote
1 answer
238 views

Why do modern SCSI to SD adapters insist in being designed to a max. speed of 10 MB/sec.? [closed]

I just found out about BLUESCsi and wow, I didn't know it. I was familiar with SCSI2SD, which has now reached version 6. However, I always find myself surprised and a little disappointed by these ...
N. Di Pietro's user avatar
1 vote
1 answer
84 views

Linux SCSI configuratuon

I recently installed a SCSI card (Kofax 650) into my Linux workstation and have been racking my brains trying to get it to work. I can see that the SCSI card is detected by my BIOS and my operating ...
Luca's user avatar
  • 11
1 vote
0 answers
25 views

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 ...
Barry McAuley's user avatar
0 votes
0 answers
71 views

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 ...
James Mason's user avatar
1 vote
1 answer
2k 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 ...
mania's user avatar
  • 13
-1 votes
3 answers
2k views

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 ...
stevejd58's user avatar
2 votes
1 answer
515 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 ...
qrani's user avatar
  • 21
2 votes
1 answer
1k views

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 ...
Dmitry Brant's user avatar
0 votes
1 answer
311 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?
S. Ezreal's user avatar
1 vote
0 answers
3k views

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 ...
Peter's user avatar
  • 277
1 vote
0 answers
4k views

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 ...
user321627's user avatar
2 votes
1 answer
344 views

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 ...
user321627's user avatar
0 votes
1 answer
2k views

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 ...
Franklin Yu's user avatar
2 votes
3 answers
13k 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 ...
Toeffel's user avatar
  • 21
0 votes
1 answer
143 views

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 ...
Tagar's user avatar
  • 230
1 vote
0 answers
205 views

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 ...
Sidias-Korrado's user avatar
1 vote
1 answer
1k views

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?
oshirowanen's user avatar
  • 1,720
1 vote
2 answers
987 views

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 ...
GDN9's user avatar
  • 113
0 votes
0 answers
896 views

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 ...
JaKu's user avatar
  • 113
1 vote
1 answer
4k views

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,...
delorean924's user avatar
0 votes
1 answer
922 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 ...
iFreilicht's user avatar
2 votes
1 answer
577 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 ...
xakepp35's user avatar
  • 369
0 votes
0 answers
102 views

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 ...
manoj's user avatar
  • 9
1 vote
0 answers
277 views

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. ...
smwikipedia's user avatar
1 vote
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 ...
FUZxxl's user avatar
  • 536
1 vote
0 answers
5k views

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/ ...
user2284570's user avatar
  • 1,843
2 votes
1 answer
1k views

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-...
ELLIOTTCABLE's user avatar
  • 2,495
0 votes
1 answer
613 views

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 ...
Anonymous's user avatar
1 vote
1 answer
761 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 ...
emrecnl's user avatar
  • 434
0 votes
1 answer
613 views

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 ...
Henri Wathieu's user avatar
1 vote
1 answer
1k 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 '...
user93353's user avatar
  • 573
2 votes
1 answer
3k views

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 ...
hygri's user avatar
  • 484
0 votes
0 answers
1k views

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 ...
RBH's user avatar
  • 141
1 vote
1 answer
1k views

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 ...
Balzola's user avatar
  • 113
2 votes
2 answers
2k views

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?
nudzo's user avatar
  • 248
0 votes
1 answer
105 views

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 ...
elbarna's user avatar
  • 358
1 vote
2 answers
3k views

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 ...
superphonic's user avatar
1 vote
2 answers
5k 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-...
wxs's user avatar
  • 235
4 votes
2 answers
5k views

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 ...
Richard's user avatar
  • 41
1 vote
0 answers
239 views

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 ...
Nick's user avatar
  • 21
1 vote
2 answers
762 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 ...
Grzegorz's user avatar
  • 286
0 votes
1 answer
764 views

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 ...
Liesmith's user avatar
  • 197
0 votes
1 answer
2k views

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 ...
mOrloff's user avatar
  • 103
1 vote
1 answer
346 views

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 (...
Pentium100's user avatar
0 votes
1 answer
166 views

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 ...
Drew McGowen's user avatar
1 vote
0 answers
811 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 ...
Julio's user avatar
  • 11
0 votes
2 answers
4k views

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 ...
compcobalt's user avatar
2 votes
2 answers
121 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 ...
Rufi's user avatar
  • 171
1 vote
2 answers
3k views

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 ...
Chad Harrison's user avatar