search for: sata3

Hello, Having a problem with software RAID that is driving me crazy. Here's the details: 1. CentOS 6.2 x86_64 install from the minimal iso (via pxeboot). 2. Reasonably good PC hardware (i.e. not budget, but not server grade either) with a pair of 1TB Western Digital SATA3 Drives. 3. Drives are plugged into the SATA3 ports on the mainboard (both drives and cables say they can do 6Gb/s). 4. During the install I set up software RAID1 for the two drives with two raid partitions: md0 - 500M for /boot md1 - "the rest" for a physical volume 5. Setup LVM...

I run a decent amount of 3ware hardware, all under centos-4. There seems to be some sort of fundamental disagreement between ext3 and 3ware's hardware RAID5 mode that trashes write performance. As a representative example, one current setup is 2 9550SX-12 boards in hardware RAID5 mode (256KB stripe size) with a software RAID0 stripe on top (also 256KB chunks). bonnie++ results look

On my machine I have SATA0: HD SATA1: HD these two drives are set as RAID1 SATA2: HD extra SATA3: DVD SATA4: external USB disk Snip from dmesg shows the ATAPI device being detected. ata3: SATA max UDMA/133 cmd 0x9e0 ctl 0xbe0 bmdma 0xe400 irq 10 ata4: SATA max UDMA/133 cmd 0x960 ctl 0xb60 bmdma 0xe408 irq 10 ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata3.00: ATAPI: PIONEER BD-RO...

...box I'm mounting the harddrives I want to share like this in /etc/fstab: /dev/sda1 /storage/sata0 xfs defaults 0 2 /dev/sdb1 /storage/sata1 xfs defaults 0 2 /dev/sdc1 /storage/sata2 xfs defaults 0 2 /dev/sdd1 /storage/sata3 xfs defaults 0 2 /storage and all subdirs are owned by my file server user login name and are chmod'ed with 744. Next, I'm sharing them in /etc/samba/smb.conf as follows: [global] workgroup = MSHOME server string = Samba %v on (%L) invalid users =...

...(standard installed on Ubuntu 12.04) has: seq (R/W) :319 / 146 MB/s 512k(R/W) :306 / 143 MB/s 4K(R/W) :10 / 7 MB/s 4K QD32(R/W):12 / 9 MB/s Need only Xen because of second graphic card pass through (here works fine). I have: intel e5-1620, 64 GB uDDR @1333Mgz, Dom0 on SSD OCZ Vertex4(@SATA3 port). Second SSD OCZ Agility 3 (@SATA3 port) with LVM 2 only for DomU. Kernel (3.4.7) + Xen unstable(rev 25705, Aug 02 14:44:53 2012 +0100) self compiled (according to Manual of Teo En Ming) DimU: Windows XP sp 2 # lvdisplay File descriptor 8 (pipe:[16062]) leaked on lvdisplay invocation. Parent...

...or external USB disks, and much prefer internal drives for esveral reasons: - Internal drives are protected by being inside a tower and thus have less chance of falling or being bumped than free-standing external boxes - Fewer plugs and wires - Power-up sequencing is coordinated with CPU power - SATA3 is faster than USB3 (I think) But sometimes one has no choice. The Mac pro may look cute in its black cylinder, for example, but there's no place to add anything to it. External drives are the only choice that I know of. David At 07:57 AM 1/15/2018, Warren Young wrote: >On Jan 12,...

Might be slightly OT as it isn't necessarily a CentOS related issue. I've been using WD Reds as mdraid components which worked pretty well for non-IOPS intensive workloads. However, the latest C7 server I built, ran into problems with them on on a Intel C236 board (SuperMicro X11SSH) with tons of "ata bus error write fpdma queued". Googling on it threw up old suggestions to

...no struggle with "i can have this and this but not combined with that" > no struggle with "cool features but terrible slow" or otherside round > no bloatware > Thats a strange argument, since up until recently home/sbu routers did not come with 256/512MB ram, had USB3/sata3 ports and dual core arm cpu's. All the above points are basically what i have now on my WRT-1200AC running openWRT. I use the latest 4.4.4 kernel + btrfs and can max out the GB ports using smb3.1, while the system is stable and i can pick exactly what runs on the system. All this runs at 3-5...

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

...to limit > SATA link speed to 1.5Gbps using libata.force boot options and/or > noncq. Lowering the link speed helped to reduce the frequency of the > errors (from not getting a smartctl output to getting a complete > listing within 2 tries). any chance your SATA cables aren't up to SATA3 (6gbps) performance levels ? the C236 chipset is the server version of the Z170, latest Skylake family chipset. -- john r pierce, recycling bits in santa cruz

..."i can have this and this but not combined with that" >> no struggle with "cool features but terrible slow" or otherside round >> no bloatware > > Thats a strange argument, since up until recently home/sbu routers did not > come with 256/512MB ram, had USB3/sata3 ports and dual core arm cpu's. bloatware means unsecure, uncomfortable webinterfaces with limited functionality compared what iptables alone offers you with some knowledge > All the above points are basically what i have now on my WRT-1200AC running > openWRT. > I use the latest 4.4...

...00LPB) and an external SAS2 JBOD (SC847E16-RJBOD1). It makes a system with a total of 4 backplanes (2x SAS + 2x SAS2) each of them connected to a 4 different HBA (2x LSI 3081E-R (1068 chip) + 2x LSI SAS9200-8e (2008 chip)). This system is has a total of 81 disk (2x SAS (SEAGATE ST3146356SS) + 34 SATA3 (Hitachi HDS722020ALA330) + 45 SATA6 (Hitachi HDS723020BLA642)) The system is controlled by Opensolaris (snv_134) and it work normally. All the SATA disks are part of the same pool separate by raidz2 vdev composed by 11 (~) disks. The issue arise when on of the disk starts to fail making long t...

...6 drives. Then rebooted using the CentOS 6 DVD and did the complete install including the RAID-10 devices. Why could I install completely CentOS 6 but not CentOS 7? Note:?? When booting I saw a selection for PF2 so I could setup UEFI. Also PF11 allows me to make a ??????? choice to boot from SATA3 standard MBR or UEFI boot. What am I doing wrong? -- Eugene Poole Woodstock, Georgia

John-- Thanks for the suggestion. I finally had a chance to get to the system in question, It was the only one of many that exhibited the USB hang. I tried a reboot with the two USB disks disconnected. Everything worked. I plugged them in, and then did both "lsusb -v" and "lshw", and again, everything worked. Continuing my test: Reboot with both drives plugged in:

...rboard with an AMD Opteron 175. Relevant dmesg output: atapci0: <nVidia nForce CK804 UDMA133 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xf000-0xf00f at device 6.0 on pci0 ata0: <ATA channel 0> on atapci0 ata1: <ATA channel 1> on atapci0 atapci1: <nVidia nForce CK804 SATA300 controller> port 0x9f0-0x9f7,0xbf0-0xbf3,0x970-0x977,0xb70-0xb73,0xd800-0xd80f mem 0xd3002000-0xd3002fff irq 21 at device 7.0 on pci0 ata2: <ATA channel 0> on atapci1 ata3: <ATA channel 1> on atapci1 atapci2: <nVidia nForce CK804 SATA300 controller> port 0x9e0-0x9e7,0xbe0-0xb...

I grabbed a new SSD M4-CT064M4SSD2 from Crucial. I am disappointed. I stuck the unit in an Atom machine (zotac) with CentOS 6 on the disk. It really doesn't "feel" faster than the previous 5400 RPM drive that was in it. The SSD is giving me (in the zotac running centos 6): hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: 298 MB in 3.00 seconds = 99.30 MB/sec The

On Wed, Jul 9, 2008 at 1:12 PM, Tim <tim at tcsac.net> wrote: > Perfect. Which means good ol'' supermicro would come through :) WOHOO! > > AOC-USAS-L8i > > http://www.supermicro.com/products/accessories/addon/AOC-USAS-L8i.cfm Is this card new? I''m not finding it at the usual places like Newegg, etc. It looks like the LSI SAS3081E-R, but probably at 1/2 the

I'm setting up this huge RAID 6 box. I've always thought of hot spares, but I'm reading things that are comparing RAID 5 with a hot spare to RAID 6, implying that the latter doesn't need one. I *certainly* have enough drives to spare in this RAID box: 42 of 'em, so two questions: should I assign one or more hot spares, and, if so, how many? mark

Hi, i would like to inspire a discussion on why samba4 has nearly no adaption on home/small business routers firmware. I recently switched from my old Asus-N16 running tomato to a WRT-1200AC and was researching potential firmware's that i could run. We have a new synology disk-station at work that runs Samba 4.x and it works great. So i was surprised to notice that 3 years after the 4.0

I have this server I need to put to work. The option I have is to make it work as a small office PBX with SIP users and a Digium E1 Card for PSTN service. 24 SIP users and one E1 card in an Intel 945board (533 Front side bus) with 1GB DDR 533mhz of ram, one Pentium Dual Core 2.66 ghz (FSB 533MHZ) and two 80GB SATA disks. Can the box sustain the load? I can add another 1gb of ram if necessary.