search for: 4096b

Excellent description, thank you. With performance.write-behind-trickling-writes ON (default): ## 4k randwrite # fio --randrepeat=1 --ioengine=libaio --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=32 --size=256MB --readwrite=randwrite test: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=32 fio-3.1 Starting 1 process Jobs: 1 (f=1): [w(1)][100.0%][r=0KiB/s,w=17.3MiB/s][r=0,w=4422 IOPS][eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=42701: Tue Mar 20 15:05:23 2018 write: IOPS=4443, BW=17.4MiB/s (18.2MB/s)(256MiB...

On Tue, Mar 20, 2018 at 8:57 AM, Sam McLeod <mailinglists at smcleod.net> wrote: > Hi Raghavendra, > > > On 20 Mar 2018, at 1:55 pm, Raghavendra Gowdappa <rgowdapp at redhat.com> > wrote: > > Aggregating large number of small writes by write-behind into large writes > has been merged on master: > https://github.com/gluster/glusterfs/issues/364 > >

...the disk with --> parted -a optimal /dev/sdb [root at nas ~]# parted -a optimal /dev/sdb GNU Parted 2.1 Using /dev/sdb Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) p Model: ATA ST2000DM001-1E61 (scsi) Disk /dev/sdb: 2000GB Sector size (logical/physical): 512B/4096B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 2000GB 2000GB primary ntfs raid There is no ntfs filesystem on the disk, I've still not worked out how to remove that flag. I've followed the article here --> http://www.cyb...

While researching another issue unrelated to Syslinux, I found some mildly disturbing news that affects Syslinux. As HPA stated back on 2009-06-04, hard drive manufacturers are pushing towards a 4096B (4kiB; 4k) native sector size. They're calling it "Advanced Format Technology". It appears that WD (Western Digital; WDC) is the first with some products being released back in December and that Seagate just recently "jumped on the bandwagon". Seeing as HPA's mention...

...#39;, conn=self) libvirtError: internal error: process exited while connecting to monitor: Failed to create chardev When tyring to create new VM with virt-install, I am getting: virt-install --name eff1 --disk /home/kvmimages/eff1.img --cdrom /home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 4096B ERROR Error: --memory 4096B: invalid literal for int() with base 10: '4096B' [root@eff1 kvmimages]# virt-install --name eff1 --disk /home/kvmimages/eff1.img --cdrom /home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 4096 WARNING CDROM media does not print to the text console by defau...

...0| 0 0 0 0 100 0 0 0| 0 0 | 0| 0 0 0 0 100 0 0 0| 0 0 | 0| 0 0 4 0 84 11 0 0|2512k 228k|52.3| 123 2 31 4 58 7 0 0|1912k 1026k|38.1| 132 23 0 0 99 0 0 0| 0 0 | 0| 0 0 1 0 99 1 0 0|4096B 3819k|22.5| 1 270 0 0 100 0 0 0| 0 0 | 0| 0 0 13 1 83 4 0 0| 148k 2304k|15.3| 18 214 1 0 98 1 0 0| 140k 499k|9.70| 14 8 26 5 69 0 0 0| 0 1260k|1.30| 0 46 56 7 38 0 0 0| 0 204k|0.30| 0 12 14 11 75 0...

...get anaconda to create matching partition schemes). So I've now got /dev/sdg1 and /dev/sdh1 as 'bios_grub' (/dev/sd{a-f} are a separate array). 0 root at an-nas02:~# parted /dev/sdg print free Model: ATA ST3000NC000 (scsi) Disk /dev/sdg: 3001GB Sector size (logical/physical): 512B/4096B Partition Table: gpt Disk Flags: pmbr_boot Number Start End Size File system Name Flags 17.4kB 1049kB 1031kB Free Space 1 1049kB 3146kB 2097kB bios_grub 2 3146kB 3001GB 3001GB raid 3001GB 3001GB 466kB Fr...

...nternal error: process exited while connecting to monitor: > Failed to create chardev > > > When tyring to create new VM with virt-install, I am getting: > > virt-install --name eff1 --disk /home/kvmimages/eff1.img --cdrom > /home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 4096B > ERROR Error: --memory 4096B: invalid literal for int() with base 10: > '4096B' This is an invalid invocation. > [root@eff1 kvmimages]# virt-install --name eff1 --disk > /home/kvmimages/eff1.img --cdrom /home/kvmimages/Fedora-20-x86_64-DVD.iso > --memory 4096 > WARN...

...0 | 0| 0 0 >> 0 0 100 0 0 0| 0 0 | 0| 0 0 >> 4 0 84 11 0 0|2512k 228k|52.3| 123 2 >> 31 4 58 7 0 0|1912k 1026k|38.1| 132 23 >> 0 0 99 0 0 0| 0 0 | 0| 0 0 >> 1 0 99 1 0 0|4096B 3819k|22.5| 1 270 >> 0 0 100 0 0 0| 0 0 | 0| 0 0 >> 13 1 83 4 0 0| 148k 2304k|15.3| 18 214 >> 1 0 98 1 0 0| 140k 499k|9.70| 14 8 >> 26 5 69 0 0 0| 0 1260k|1.30| 0 46 >> 56 7 38 0 0 0|...

...goplug with the Redsleeve 7 distro), I have a usb attached backup drive (what other type of drives can you have on a pogoplug other than usb? :) ). I had reformated the partition as ext4: # parted /dev/sdb print Model: WD My Book 1230 (scsi) Disk /dev/sdb: 3001GB Sector size (logical/physical): 4096B/4096B Partition Table: msdos Disk Flags: Number Start End Size Type File system Flags 1 1049kB 3001GB 3001GB primary So I tried smartctl: #smartctl -a /dev/sdb smartctl 6.2 2013-07-26 r3841 [armv5tel-linux-3.8.7-201.fc18.armv5tel.kirkwood] (local build) Copyright (C) 20...

Hi, When creating a dedicated storage pool on a FC attached storage with sector size of 4096B and size of 2TB, the storage pool is created but reported as 1/8 of it's size, the same follows for any volume created in the same storage pool: # virsh pool-info guest_images_disk Name: guest_images_disk UUID: 30247222-c1fb-8749-b833-a73782198d26 State:...

HI all, I just did a fresh C7 install using kickstart. fdisk -l /dev/sda shows: # Start End Size Type Name 1 2048 2050047 1000M EFI System EFI System Partition 2 2050048 104450047 48.8G Microsoft basic 3 104450048 112642047 3.9G Linux swap 4 112642048 234440703 58.1G Microsoft basic What extra do I need to

...00 0 0 0| 0 0 | 0| 0 0 > 0 0 100 0 0 0| 0 0 | 0| 0 0 > 4 0 84 11 0 0|2512k 228k|52.3| 123 2 > 31 4 58 7 0 0|1912k 1026k|38.1| 132 23 > 0 0 99 0 0 0| 0 0 | 0| 0 0 > 1 0 99 1 0 0|4096B 3819k|22.5| 1 270 > 0 0 100 0 0 0| 0 0 | 0| 0 0 > 13 1 83 4 0 0| 148k 2304k|15.3| 18 214 > 1 0 98 1 0 0| 140k 499k|9.70| 14 8 > 26 5 69 0 0 0| 0 1260k|1.30| 0 46 > 56 7 38 0 0 0| 0 204k|0.30|...

Subject says it. I would like to find out if I have anything written on the MBR of a disk in my system /dev/sda, or any other device. If there is something there, is it readable, or recognizable to humans? thanks, -chuck

I have Windows 7 on /dev/sda and CentOS 6.4 on /dev/sdb. Here are the layouts: (parted) select /dev/sda Using /dev/sda (parted) print Model: ATA WDC WD10EZEX-00Z (scsi) Disk /dev/sda: 1000GB Sector size (logical/physical): 512B/4096B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 374MB 373MB primary ntfs boot 2 374MB 1000GB 1000GB primary ntfs (parted) select /dev/sdb Using /dev/sdb (parted) print Model: ATA ST500DM002-1BD14 (scsi) Disk /dev/sdb...

Hi, After full new install of Fedora 19 or 20, I am getting this when I want to create a new VMs. Impossible de terminer l'installation : « Unable to create vcpu cgroup for fedora20(vcpu: 0): Aucun fichier ou dossier de ce type » Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 91, in cb_wrapper callback(asyncjob, *args,

Hi, My company is testing btrfs (kernel 2.6.38) on a slave MySQL database server with a 195Gb filesystem (of which about 123Gb is used). So far, we''re quite impressed with the performance. Our database loads are high, and if filesystem performance wasn''t good, MySQL replication wouldn''t be able to keep up and the slave latency would begin to climb. This though, is

...ited while connecting to monitor: >> Failed to create chardev >> >> >> When tyring to create new VM with virt-install, I am getting: >> >> virt-install --name eff1 --disk /home/kvmimages/eff1.img --cdrom >> /home/kvmimages/Fedora-20-x86_64-DVD.iso --memory 4096B >> ERROR Error: --memory 4096B: invalid literal for int() with base 10: >> '4096B' > This is an invalid invocation. > >> [root@eff1 kvmimages]# virt-install --name eff1 --disk >> /home/kvmimages/eff1.img --cdrom /home/kvmimages/Fedora-20-x86_64-DVD.iso >...

> I'm having an issue getting a C6.6 install to work on a 3 TB dual hard >drive system, raid 0. I'm hoping that someone here can help. 1: Is this system booting UEFI or BIOS? 2: Is the disk partitioned with MBR or GPT? 3: Is /boot on its own partition? 3TB drives are larger than MBR and BIOS properly support, so they're only really expected to work on a system partitioned with

...other function signatures. Of course, there can be different vector function ABIs for different targets. Intel compiler cost model uses vector function VF as part of loop vectorization VF determination. So, it’s tightly coupled. A hypothetical vector target may vectorize such a vector function for 4096b vector, with an explicit VF parameter 20 also passed to it, to execute only the lower 20-elements parts of the whole thing. I think this scenario answers Philip’s question on why separate mask and VF parameters and why VF can’t be conservatively deduced from the mask/mask compute. From: Bruce Ho...