similar to: Hellllp Pl: Centos 4.4 Default LVM install boot/recovery problem

I installed a Centos 4.x system using a lvm install across four HDDs. It is my first install using LVM. System had a power-failure and stopped booting up. A new trainee simply took out the HDDs and restarted the file-server on a fresh HDDs. Now the problemis that the four HDDs have data. But the order of the HDDs (of install....1st primary, 2nd primary etc.) is unknown. Earlier we used to boot

Hi, I am looking into purchasing a new server. This server will be mission-critical. I have read and somewhat understood the theories behind RAIDs 0, 1, 5, 10 & JBOD. However, I would like to get some feedback from those who have experience in implementing and recovering from a HDD failure using RAID. Hardware specs include:- Dual Xeon 3.2 GHz 2 GB RAM I would like to implement

Hello Phil, Wednesday, September 16, 2020, 7:40:24 PM, you wrote: PP> You can achieve this with a hybrid RAID1 by mixing SSDs and HDDs, and PP> marking the HDD members as --write-mostly, meaning most of the reads PP> will come from the faster SSDs retaining much of the speed advantage, PP> but you have the redundancy of both SSDs and HDDs in the array. PP> Read performance is

Hi Everyone, I am stack between two identical systems (2U Twin2, 4 nodes, SuperMicro) servers that have the same exact specs except for HDDs. These nodes will all either have Asterisk installed with CentOS or will have Asterisk install in virtual environment. Option 1: *12* x 3.5" HDD (3 HDDs per node) Option 2: *24* x 2.5" HDD (6 HDDs per node) **both options come to the same price.

On 9/17/20 4:25 PM, Phil Perry wrote: > On 17/09/2020 13:35, Michael Schumacher wrote: >> Hello Phil, >> >> Wednesday, September 16, 2020, 7:40:24 PM, you wrote: >> >> PP> You can achieve this with a hybrid RAID1 by mixing SSDs and HDDs, and >> PP> marking the HDD members as --write-mostly, meaning most of the reads >> PP> will come from the

Hello all, I am thinking about a new laptop. I see that there are a number of higher-performance models (incidenatlly, they are also marketed as "gamer" ones) which offer two SATA 2.5" bays and an SD flash card slot. Vendors usually position the two-HDD bay part as either "get lots of capacity with RAID0 over two HDDs, or get some capacity and some performance by mixing one

hi, I am planning to replace my old CentOS 6 mail server soon. Most details are quite obvious and do not need to be changed, but the old system was running on spinning discs and this is certainly not the best option for todays mail servers. With spinning discs, HW-RAID6 was the way to go to increase reliability and speed. Today, I get the feeling, that traditional RAID is not the best option for

Dear ZFS-Users, I want to switch to ZFS, but still want to encrypt my data. Native Encryption for ZFS was added in "ZFS Pool Version Number 30<http://en.wikipedia.org/wiki/ZFS#Release_history>", but I''m using ZFS on FreeBSD with Version 28. My question is how would encfs (fuse encryption) affect zfs specific features like data Integrity and deduplication? Regards

Cit?t "B. Reino via dovecot" <dovecot at dovecot.org>: > On 2019-04-12 07:43, azurit--- via dovecot wrote: >> Hi, >> >> recently, we had a problem on one of our mail servers and, after >> reboot, HDD with emails wasn't mounted into system. Until we fixed it, >> LOTS of users logged in (Dovecot allowed login and recreated >> directory

List: Sorry for posting to this list but could not find step by step instructions anywhere nor get any concerned list to respond. Newbie to DNS technicals but can work with instructions if given in ./configure for complete idiots ;-) 1. I have taken a static IP from my ISP 203.134.221.162 and the ISP has put up an entry in APNIC whois (please check the same)...to me it seems incomplete, as it

Has anyone created or rebuilt a Linux Software RAID having mirrored partitions on unequal sized hard disks ? There is a CentOS 5 server having two 400 GB hard disks with five mirrored partitions (software RAID 1) and one of the hard disks is dying. Since new 400 GB HDDs are not available here, we are exploring the possibility of replacing the faulty hard disk with one of a higher capacity (500 GB

Hi there. I got myself a pair of old Intel Xeon blades, which I plan to repurpose with CentOS. The model is : HP bl20p-g3 server blade Manual http://h18004.www1.hp.com/products/quickspecs/12322_ca/12322_ca.pdf Now, the main problem with this hardware is that LVD UW SCSI HDDs are hard to find and hella expensive if you find em (and of reduced capacity). Any of you know: 1. If there's any

Hi, A very simple thing that I'm unable to do. I did look at the help but .... While putting a legend on a plot, I don't wish to have the enclosing border surrounding the words (as given below). Tried to use the following, but didn't help : legend (locator(1), border=FALSE, fill=FALSE, "Important ones") legend (locator(1), border=NILL, fill=NILL, "Important

Hello, Not sure where to start looking, so I start with the program that threw the message. Not sure what information I need to provide or the preferred formatting. I did a BIOS update and now get an error message I never saw before. System seems to boot ok, run programs ok, access devices ok (SATA DVD, IDE HDD, SATA HDD, network, video, audio, USB, IEEE1394). But I don't think Linux

Hi all, Please pardon my newbie-ness on this issue....I've a / partition which is full (quite suddenly, actually) and I'm not sure how to fix this. I've searched for uneeded logs, etc in /var/log and /tmp to no avail. The system is CentOS 5.2 and is not connected to the internet, serves as a local LAN server running stock stuff...sendmail, dovecot, apache..nothing strange or

On Feb 3, 2016, at 16:13, Warren Young wrote: > A dying hard disk can do it. HDDs try to silently paper over I/O errors, but what they can?t hide is the time it takes to do this. If your HDD is constantly correcting errors at the oxide layer, it will be reeeeeallly sllllow. > > You can try running SMART tests on it, though that?s not guaranteed to show the problem. Well, it?s not ?a?

Hi, SystemZ supports @llvm.ctlz.i64() natively with a single instruction (FLOGR), and lesser bitwidth versions of the intrinsic are promoted to i64. For some reason, this leads to unfolded additions of constants as shown below: This function: define i16 @fun(i16 %arg) {   %1 = tail call i16 @llvm.ctlz.i16(i16 %arg, i1 false)   ret i16 %1 } ,gives this optimized DAG as input to instruction

I?m running CentOS 6.7 on my build servers, and on one of the servers the builds are taking almost an order of magnitude longer than usual. There are no runaway processes and there is plenty of free memory. So I suspected that file I/O might be slow, and sure enough, that appears to be the case. I ran a simple dd test and compared the results to a ?normal? build server (412 MB/s vs. 31.7 MB/s).

With NM_Controlled=No in the ifcfg file, NM applet shows "Not Managed", so the ifcfg file is being read. What is the extent of interaction of NetworkManager with ifcfg files is unknown....very little information on the net. Seems Network Manager is still mostly unplublished compared to other utilities. Any pointers to literature on this or macro architecture of NM would be appreciated,

Hello Rsync PRO?s, i?m satisfied with the rsync features...never seen a better replication tool....!! ;-) But i have some problems...:-( OK, here me installation: - one Compac Proliant ML370 with cached SCSI HDDs and 1,2GHz and 1gb RAM... on this machine we have the Rsync deamon runnig to export the data we want to replicate - now we have 68 other NAS machines in our branch offices and this NAS