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4
votes
2answers
858 views

How do I make use of unused space on my boot drive on FreeBSD

I have an old FreeBSD Server (running 7.3-RELEASE) that desperately needs additional storage. In fact, it has some-- the original 20G SCSI drives have been replaced by 300G SCSI drives, so in theory ...
0
votes
2answers
39 views

Can we predict the next registered SCSI mass storage device name

I need to anticipate the device name (sdX) that the next mass storage device (sda, sdb, sdc, …) will receive from the SCSI driver. If I remove one device and connect another one, I noticed that the ...
2
votes
1answer
43 views

Disable SCSI (CAM) device

I want to tell the FreeBSD kernel to completely ignore a SCSI cam(4) device. # cat /var/run/dmesg.boot | grep '\<da1\>' ada0: 600.000MB/s transfers (SATA 3.x, da1 at umass-sim0 bus 0 scbus4 ...
0
votes
1answer
142 views

HDD error: SMART Status command failed: scsi error medium or hardware error (serious)

After my PC won't start again (my first guess was the power switch to turn it on was dead), I removed the HDD to extract my data. When I set the HDD (a 640 GB WD) into an external case (USB 2.0), the ...
0
votes
1answer
617 views

How does SMART work for scsi device?

After going through the man pages of smartctl, smartd and smartd.conf, I am no clearer on how S.M.A.R.T. is supposed to work on a scsi device. I have a default configuration file that says: ...
3
votes
0answers
868 views

SCSI Tape drive on ubuntu and centos

On ubuntu 12.10 I have those SCSI drives: [1:0:0:0] cd/dvd TSSTcorp CDDVDW TS-H653N 0208 /dev/sr0 [2:0:0:0] disk Generic USB SD Reader 1.00 /dev/sdb [2:0:0:1] disk Generic ...
1
vote
0answers
15 views

How to erase SAS SSD

For SATA SSD, I know that there exists an open source program named hdparm for secure erase by issuing ATA command and this tool has been embedded within linux operating system. For SAS SSD, I want to ...
1
vote
0answers
22 views

Virtualization and SCSI passthrough

Is there a way to do SCSI passthrough in a virtualized environnement under Linux (Linux being the host OS, and MacOSX being the guest OS) ? My goal is to drive a high end scanner for which no driver ...
1
vote
0answers
25 views

How async_port_probe() call works in linux kernel?

To Understand the SATA device enumeration process I was studying the driver/ata/ata_piix.c which is showing as SATA host driver for my system in the output of lspci command. 00:1f.2 IDE interface: ...
1
vote
0answers
76 views

Disk benchmark IO depth clear out

When I'm manipulating over some benchmark tool I/O depth, what exactly am I changing? Let's say I have SATA disk on /dev/sda. If I run hdparm: root@linaro-gnome:~# hdparm -I /dev/sda | grep Queue ...
1
vote
0answers
58 views

Old Unix and old partition table

We have a Unix OS which was installed in 1985. This system is installed on a SCSI hard disk. I can probe the specification of the hard disk, but I cannot read the partition table. It's not damaged, ...
1
vote
0answers
430 views

module scsi_wait_scan not found on CentOS kernel-ml causes kernel panic on boot

I am attempting to upgrade from kernel-lt to kernel-ml, following the instructions here, however on boot the console is flooded with module "scsi_wait_scan" not found This leads to a general kernel ...
1
vote
0answers
987 views

I can't find tape device file inside /dev directory

I'm using tape storage drive HP LTO3 1x8 auto-loader which is connected to my server running CentOS. it is detected in CentOS correctly. cat /proc/scsi/scsi Host: scsi2 Channel: 00 Id: 01 Lun: 00 ...
0
votes
0answers
9 views

why does SCSI Host value change during reboot?

I have attached a virtual disk to my VM and the Host value changes during reboot. How can we bind it to a particular value? Host: scsi2 Channel: 00 Id: 00 Lun: 00 or Host: scsi3 Channel: 00 Id: 00 ...
0
votes
0answers
57 views

Getting the block device from an udev scsi_disk subsystem (udev C API)

I am using the udev C API to monitor connection and disconnection of SATA drives. struct udev_monitor *mon; mon = udev_monitor_new_from_netlink(udev, "udev"); ...
0
votes
0answers
212 views

Scsi parity error leads to I/O error

We're using a fiber channel-connected disk array on a blade server. The disk array is set up as RAID 6. Since the beginning of the week our file systems have started to remount as read only due to ...
0
votes
0answers
51 views

Find drive for SCSI device

This is the first time that I am working with storage devices. When I run cat /proc/scsi/scsi on my server, I have the following result: Attached devices: Host: scsi0 Channel: 00 Id: ...
0
votes
0answers
135 views

AIX equivalent of Solaris' iostat -E

On Solaris you can use the command iostat -En to view "disk error statistics" as counted by the kernel since the last reboot, where the -n option causes iostat to show "nice" device names. I'm ...