similar to: slow system

OK todays problem. I have a HP N54L Microserver running centos 6.5. In this box I have a 3x2TB disk raid 5 array, which I am in the process of extending to a 4x2TB raid 5 array. I've added the new disk --> mdadm --add /dev/md0 /dev/sdb And grown the array --> mdadm --grow /dev/md0 --raid-devices=4 Now the problem the resync speed is v slow, it refuses to rise above 5MB, in general

On 01/30/19 03:45, Alessandro Baggi wrote: > Il 29/01/19 20:42, mark ha scritto: >> Alessandro Baggi wrote: >>> Il 29/01/19 18:47, mark ha scritto: >>>> Alessandro Baggi wrote: >>>>> Il 29/01/19 15:03, mark ha scritto: >>>>> >>>>>> I've no idea what happened, but the box I was working on last week

Alessandro Baggi wrote: > Il 29/01/19 18:47, mark ha scritto: >> Alessandro Baggi wrote: >>> Il 29/01/19 15:03, mark ha scritto: >>> >>>> I've no idea what happened, but the box I was working on last week >>>> has a *second* bad drive. Actually, I'm starting to wonder about >>>> that particulare hot-swap bay. >>>>

Il 30/01/19 16:49, Simon Matter ha scritto: >> On 01/30/19 03:45, Alessandro Baggi wrote: >>> Il 29/01/19 20:42, mark ha scritto: >>>> Alessandro Baggi wrote: >>>>> Il 29/01/19 18:47, mark ha scritto: >>>>>> Alessandro Baggi wrote: >>>>>>> Il 29/01/19 15:03, mark ha scritto: >>>>>>>

Alessandro Baggi wrote: > Il 30/01/19 14:02, mark ha scritto: >> On 01/30/19 03:45, Alessandro Baggi wrote: >>> Il 29/01/19 20:42, mark ha scritto: >>>> Alessandro Baggi wrote: >>>>> Il 29/01/19 18:47, mark ha scritto: >>>>>> Alessandro Baggi wrote: >>>>>>> Il 29/01/19 15:03, mark ha scritto:

OK, I have managed to get software RAID 1 running on my wonderful Proliant server but now have two challenges: 1) Fresh after an OS install and reboot, the RAID array starts to do its stuff but straight away (as part of the boot messages) I am told that the second disk is 'not ready for command' and the system hangs as soon as resyncing starts. I think this is fixed by adding an hdparm

Alessandro Baggi wrote: > Il 30/01/19 16:33, mark ha scritto: > >> Alessandro Baggi wrote: >> >>> Il 30/01/19 14:02, mark ha scritto: >>> >>>> On 01/30/19 03:45, Alessandro Baggi wrote: >>>> >>>>> Il 29/01/19 20:42, mark ha scritto: >>>>> >>>>>> Alessandro Baggi wrote:

We have a CentOS 3 server with about 300GB of data on an ext2 filesystem that we need to mirror onto a new drive, which we're then going to pull out and put into a second server. A straight disk-to-disk copy (with rsync, tar, or "cp -a" doesn't much matter) manages about 75MB per minute, which would take almost three days, and the system gets very sluggish while such a copy is

I have configured 2x 500G sata HDD as Software RAID1 with three partitions md0,md1 and md2 with md2 as 400+ gigs Now it is almost 36 hours the status is cat /proc/mdstat Personalities : [raid1] md0 : active raid1 hdb1[1] hda1[0] 104320 blocks [2/2] [UU] resync=DELAYED md1 : active raid1 hdb2[1] hda2[0] 4096448 blocks [2/2] [UU] resync=DELAYED md2 : active raid1

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.

I have a CentOS 4.2 system that was set up VERY quickly following the demise of its former life as a CentOS 3 server - you don't want the full story, but it had to be done quickly to get a company up and working following a slight disaster involving an electrician, a portable appliance safety tester and a pulled power cable - anyway, here's where I am at... Everything is running fine but

I want to mirror an existing 40GB data only drive using software Raid1 on my new CentOS 4 server. The existing drive is connected to a Promise Ultra 100 TX2 controller (non-raid). I have read about mdadm and understand how to create the Raid1 on /dev/mdxx devices. However I would like to know if the existing data on the orignal 40GB drive in the system will be destroyed when I create the raid with

Several companies have been interested in getting replication support for Dovecot. It looks like I could begin implementing it in a few months after some other changes. So here's how I'm planning on doing it: What needs to be replicated: - Saving new mails (IMAP, deliver) - Copying existing mails - Expunges - Flag and keyword changes - Mailbox creations, deletions and renames -

If you have a disk with several partitions set up as members of a raid1 md devices, can you make a dd image of that disk to replace its matching drive with identical partitions or are there differences between the mirrored partitions? -- Les Mikesell lesmikesell at gmail.com

hello all, I have a setup that is raid 1 and put the mirrored drive back in and now it is still showing as degraded saying: raid1: raid set md6 active with 1 out of 2 mirrors with this message on all the raids.i know i am wrong by saying this but i thought putting in the driving and rebooting would start the re syncing itself. what do i have to do to add this back in, i am so confused with this

CentOS 6.3, x86_64. I have noticed when building a new software RAID-6 array on CentOS 6.3 that the mismatch_cnt grows monotonically while the array is building: # cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] md11 : active raid6 sdg[5] sdf[4] sde[3] sdd[2] sdc[1] sdb[0] 3904890880 blocks super 1.2 level 6, 512k chunk, algorithm 2 [6/6] [UUUUUU]

Is it possible or will there be any problems with using mdraid on top of mdraid? specifically say mdraid 1/5 on top of mdraid multipath. e.g. 4 storage machines exporting iSCSI targets via two different physical network switches then use multipath to create md block devices then use mdraid on these md block devices The purpose being the storage array surviving a physical network switch

How can I tell wich HDD to swap, when the "cat /proc/mdstat" says one HDD of the RAID1 array has died? Does the HDD's has some serial numbers, that I can see in "reality", and I can get that number from e.g.: a commands output? How could I know wich HDD to swap in e.g.: a RAID1 array? thank you -------------- next part -------------- An HTML attachment

Everyone, Is there a way to manually assign usb drives to a specified device label. Is there a way to force two usb drives to be labeled as /dev/sdc and /dev/sdd? I decided to build an archive server for the purpose of backing up other fedora/centos desktops at the office. I built a machine and have installed Centos 7.3 on it with all updates current. I also purchased a 3.0 usb sata drive

Is it possible to install CentOS 5 with a degraded RAID 1 array using kickstart? I have the kickstart file already created but the "server" I want to use only has 1 hard drive in it at the moment. Until I can order a 2nd drive, I wanted to install the OS then once I received the replacement drive "fix" the array. I have seen instructions how to do this manually, but so far have