similar to: Mirroring Hard Drive

This might be a stupid question, but here goes... Would adding, say, 4 4 or 8gb usb keys as a zil make enough of a difference for writes on an iscsi shared vol? I am finding reads are not too bad (40is mb/s over gige on 2 500gb drives stripped) but writes top out at about 10 and drop a lot lower... If I where to add a couple usb keys for zil, would it make a difference? Thanks. Sent from a

I am trying to upgrade my system from 500GB drives to 1TB. I was able to partition and sync the raid devices, but I cannot get the new drive to boot. This is an old system with only IDE ports. There is an added Highpoint raid card which is used only for the two extra IDE ports. I have upgraded it with a 1TB SATA drive and an IDE-SATA adapter. I did not have any problems with the system

I have CentOS 4.x installed on a single 500GB SATA drive. Drive is about 10 percent used. I would like to migrate to software RAID 5 without reinstalling the OS. Was thinking 3 500GB drives. Is that possible or must I reinstall? Matt

I''m playing around with ZFS and want to figure out the best use of my 6x 300GB SATA drives. The purpose of the drives is to store all of my data at home (video, photos, music, etc). I''m debating between: 6x 300GB disks in a single raidz2 pool --or-- 2x (3x 300GB disks in a pool) mirrored I''ve read up a lot on ZFS, but I can''t really figure out which is

Hello, I am a relatively new user of Xen virtualization, so you''ll have to forgive the simplistic nature of my question. I have a Dell R410 poweredge server (dual quad core CPUs + 32gb ram). I plan on utilizing this server with Xen. The ''dilemma'' I am having is whether or not to replace the 2x 500gb 7.2K RPM drives that came with the server with faster 300gb

Hi people, I am building a cheap remote rsync backup server using a software raid 5 array of 4 500GB disks. What I have available on the market is: 1. HITACHI GST Deskstar T7K500 500GB 7200rpm 16MB cache Serial ATA II-300 2. SEAGATE Barracuda 7200.10 with NCQ 500GB 7200rpm 16MB cache Serial ATA II-300 3. Western Digital 500GB SATAII RAID EDITION Caviar SE16 7200rpm 8.9ms 16MB cache I am

I have a working CentOS5 installation on server A's first SATA drive (sda). I had an empty SATA drive on that server (sdb). I was asked to mirror the installation of server B (installed on first SATA drive, sda), also running CentOS5, to the second drive (sdb) of server A. I am unsure what should be done after mirroring to get the new system boot. What I have done already: - On server

what file system are you using?? ssd drives have different characteristics that need to be accomadated (including a relatively slow write process which is obvious as soon as the buffer is full), and never, never put a swap partition on it, the high activity will wear it out rather quickly.? might also check cables, often a problem particularly if they are older sata cables being run at a possibly

Hello, I think this needs a few more eyes: http://lists.freebsd.org/pipermail/freebsd-scsi/2009-January/003782.html In short, writes are slow, likely do to the write-cache being enabled on the controller. The sysctl used in 6.x to turn the cache off don't seem to be in 7.x. Thanks, Charles ___ Charles Sprickman NetEng/SysAdmin Bway.net - New York's Best Internet - www.bway.net

Greetings, I have three drives; they are all SATA Seagate Barracudas; two are 500GB; the third is a 2TB. I don't have a clear reason why they have failed (possibly due to a deep, off-brand, flakey mobo; but it's still inconclusive, but I would like to find a disaster recovery service that can hopefully recover the data. Much thanks for any and all suggestions, Max Pyziur pyz at

My test setup of 8 x 2G virtual disks under Virtual Box on top of Mac OS X is running nicely! I haven''t lost a *single* byte of data. ;) A. -- Adam Sherman CTO, Versature Corp. Tel: +1.877.498.3772 x113

Dear all, I''ve installed Xen 3.0.1 on my laptop and dom0 is boot normaly execpt it''s could not using X, i haven''t trying to boot guest OS. my laptop configuration is Toshiba Portege R150 with Debian Sarge on it. And then I installed same version of Xen into our server with Debian Sarge and Kernel 2.4. Booting dom0 is not success , xen always trying look dor NFS root and

Hi, I have a custom linux system that runs off a FAT32 usb flash disk. I use syslinux to make it bootable and load the kernel. I'm trying to boot now from a SSD SATA disk (500GB) but it's not working and I can't figure out why. BIOS show that no bootable disk were found. What I already tried (linux fdisk): 1- Creating a new DOS partition table on the SSD, a FAT32 (type b), and

I am trying to use CentOS 4 on this machine and it does not allow me to set DMA to 1, it just says that it is not possible. I have tried updating to the latest release and it still won't work. I have searched for it on Google and there is a thread mentioning the same machine and CentOS, but none of the solutions (-p, -X 12) seem to work at all and there is no "it works!!!!!"

Hi all I want to look at setting up a simple / cheap SAN / NAS server using normal PIV motherboard, 2GB (or even more) RAM, Core 2 Duo CPU (probably a Intel 6700 / 6750 / 6800) & some SATA HDD's (4 or 6x 320GB - 750GB). My budget is limited, so I can't afford a pre-built NAS device. Can this be done with CentOS? I've been looking FreeNAS (which is built on FreeBSD), and it

Hi, I don´t think that this is a ext3 Problem, since you have problems partitioning that disk. Perhaps a hdparm -i /dev/hdX could shine some light on this, also a fdisk -l /dev/hdX could be useful. For now - let me guess: <guess> To me, it seems, that the disk is clipped to 32GB, perhaps the mainboard bios can not cope with a disk >32GB - just a thought. Since the manufactorer

Hello everyone, I''m wondering if the following makes sense: To configure a system for high IOPS, I want to have a zpool of 15K RPM SAS drives. For high IOPS, I believe it is best to let ZFS stripe them, instead of doing a raidz1 across them. Therefore, I would like to mirror the drives for reliability. Now, I''m wondering if I can get away with using a large capacity 7200

Hello everybody, I am new to this list, so welcome everybody. Last 2 week I had two harddisk crashes with my ext2 file system. This is what sort of happed with both of the disk: I pluged in my USB to SATA converter in my harddisk that has an ext2 filesystem. I mounted the partition, went to a directory that had a DVD image. I mounted the dvd image in the same directory and started watching the

I have a Linux server with 2 Hard disks (IDE). The machine went down and refuses to boot. I need to recover some data from one of the disks. Can I put this drive in a different Linux box and recover tha data I need. Thanks in advance, Prasad -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, Segate has released the ST3750640AS 750 GB sata drive. I would like to take two of these and plug in to a the Nvidia Nforce 4 Sata I/F an run Zfs on . ( I have installed SXCR build 40 on a shuttle SNP25 PC last weekend with some install problems I reported in the install-discussionlist ) I there any limitations anywhere in the path to the drive that would