search for: sdparm

smartctl, hdparm, and sdparm all are valuable tools to obtain hard drive info. But, they don't seem to work, at least, on obtaining hard drive info from drives on a Dell PERC controller. Instead, I'm given basic PERC controller info, not drive info. Is there a tool to let me get the hard drive make/model/serial nu...

1. ext4 mke2fs -b 4096 -m 5 -t ext4 -O^uninit_bg -r 1 -v /dev/sdb1 sdparm --command=sync /dev/sdb 2. 150G 3. gdisk /dev/sdb x a 2 w y sdparm --command=sync /dev/sdb 4. mount /dev/sdb1 /mnt/sdb1 cd /mnt/sdb1 extlinux -i /mnt/sdb1/boot umount /mnt/sdb1 sync;sync;sync sdparm --command=sync /dev/sdb cat gptmbr.bin >/dev/sdb1 sync;sync;sync sdparm --command=sync /dev/sdb 5...

...Rev: 1.00 Type: Direct-Access ANSI SCSI revision: 02 SCSI device sda: 213288960 512-byte hdwr sectors (109204 MB) SCSI device sda: drive cache: write through sda: sda1 sda2 If I boot CentOS 3.6 in rescue mode I have write back cache enabled. I have tried to use the sdparm utility to enable write back cache but it says that this parameter is not changeable. sdparm --get=WCE /dev/sda -6 /dev/sda: IBM SERVERAID 1.00 WCE 0 [Changeable: n, def: 0, saved: 0] I have looked at the ips module parameters but none seem to affect the write cache. A...

Hi all, I got bored and implemented SCSI passthrough for the virtio-blk driver. Principle is quite simple, just put the missing fields (cdb, sense and status header) on the virtio queue and then call the SG_IO ioctl on the host. So when using '-drive file=/dev/sgXX,if=virtio,format=host_device' you can happily call any sg_XX command on the resulting vdX device. Quite neat, methinks. And

Hi all, I got bored and implemented SCSI passthrough for the virtio-blk driver. Principle is quite simple, just put the missing fields (cdb, sense and status header) on the virtio queue and then call the SG_IO ioctl on the host. So when using '-drive file=/dev/sgXX,if=virtio,format=host_device' you can happily call any sg_XX command on the resulting vdX device. Quite neat, methinks. And

If it''s of interest, I''ve written up some articles on my experiences of building a ZFS NAS box which you can read here: http://breden.org.uk/2008/03/02/a-home-fileserver-using-zfs/ I used CIFS to share the filesystems, but it will be a simple matter to use NFS instead: issue the command ''zfs set sharenfs=on pool/filesystem'' instead of ''zfs set

I believe I've posted before about one of the speed issues we were having, of backups taking many, many hours that should *not* take that long. My manager and I finally nailed it down to the h/d itself. Identical boxes, and he tried a backup of one system which took under two hours, while the same regular one rand nearly six. I'd been googling on and off for weeks, and this morning, ran

On Sun, Nov 07 2010 at 6:05pm -0500, Andi Kleen <andi@firstfloor.org> wrote: > On Sun, Nov 07, 2010 at 10:39:23PM +0100, Milan Broz wrote: > > On 11/07/2010 08:45 PM, Andi Kleen wrote: > > >> I read about barrier-problems and data getting to the partition when > > >> using dm-crypt and several layers so I don''t know if that could be > >