Discuss February 2014

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CentOS-announce Digest, Vol 108, Issue 5
by centos-announce-request＠centos.org 09 Feb '14

09 Feb '14

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CEBA-2014:0141 CentOS 6 fence-agents Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Sat, 8 Feb 2014 14:54:37 +0000 From: Johnny Hughes <johnny(a)centos.org> Subject: [CentOS-announce] CEBA-2014:0141 CentOS 6 fence-agents Update To: centos-announce(a)centos.org Message-ID: <20140208145437.GA1163(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2014:0141 Upstream details at : https://rhn.redhat.com/errata/RHBA-2014-0141.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 614c2be12f6ca445d7360a443ff0c9a773fac116d7b2b72eb528b3028d0d69a6 fence-agents-3.1.5-35.el6_5.3.i686.rpm x86_64: ebff912c9701ccec8c7b247cb37a0128a7e04e81c919a81c8e7fed3f66caeb90 fence-agents-3.1.5-35.el6_5.3.x86_64.rpm Source: d3b3ae9ea2033c27e97cfe73f51ece788baed09206ef7c57ccb3676dfb04b617 fence-agents-3.1.5-35.el6_5.3.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 108, Issue 5 ***********************************************

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Upgrading Perl (modules) / RequestTracker
by Michael Mol 09 Feb '14

09 Feb '14

I'm attempting to install RequestTracker on CentOS 6.5. Running "make testdeps" as recommended by RT's installation guide, I'm presented with lists of missing Perl modules. One of these lines reads: Encode >= 2.39 ...MISSING Now, "yum whatprovides '*/Encode.pm' " informs me that that module is part of the core Perl distribution, and is installed on my system. Opening the file itself reveals: # $Id: Encode.pm,v 2.35 2009/07/13 00:49:38 dankogai Exp $ so I know that I have version 2.35 of that module installed, and obviously that's < 2.39. So I need to get 2.39 installed. What is the correct way to do this on CentOS? The last time I had to do anything like this, it was on a Debian box, I went through the process recommended by the guys in #perl, and was left with a broken system that was a real joy to piece back together...

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iso burn
by Hal Wigoda 09 Feb '14

09 Feb '14

I downloaded the CentOS-6.5-x86_64-bin-DVD1.iso and CentOS-6.5-x86_64-bin-DVD12.iso and tried to burn them to a DVD but both Windows 7 and IOS ( MacBook Pro ) do not recognize these as valid isos. What am I doing wrong? -- ----------------- Hal Wigoda Chicago

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Re: [CentOS] OT hard disk geometry
by Miguel Medalha 09 Feb '14

09 Feb '14

It seems to me that there's some confusion on your part about what a SATA power connector is... The SATA edge connector is divided in two parts, a larger one and a narrower one. The narrower one is the signal, or data, connector. The larger one is the power connector. Some older drives also had an additional common Molex connector for power, for compatibility reasons, since at first only a few power supplies had the SATA power connector. Note that the Molex connector does not enable the hot-plugging and unplugging of SATA drives. This needs the 3.3V supply that only the SATA connector provides. As far as I can see, the ST3250318AS does not have such a connector. The manual for the ST3250318AS is here: http://www.seagate.com/staticfiles/support/disc/manuals/desktop/Barracuda%2… On page 28 you can read about the SATA cables and connectors. The pins you refer to, which are not present on the WD at the same position, are NOT power connections, that is a jumper block as you can read on the first image of page 28. The manual states the following: « It is usually not necessary to set any jumpers on the drive for proper operation; however, if you connect the drive and receive a “drive not detected” error, your SATAequipped motherboard or host adapter may use a chipset that does not support SATA speed autonegotiation. If you have a motherboard or host adapter that does not support autonegotiation: -Install a jumper as shown in Figure 1 below to limit the data transfer rate to 1.5 Gbits per second (and leave the drive connected to the SATA-equipped motherboard or host adapter that doesn’t support autonegotiation) or -Install a SATA host adapter that supports autonegotiation, leave the drive jumper block set to “Normal operation” (see Figure 1 below), and connect the drive to that adapter. This option has the benefit of not limiting the drive to a 1.5 Gbits/sec transfer rate. » I think this is not a power connector issue. The WD is a SATA3 drive (6gb/s). Are you sure that your motherboard supports SATA3 drives? Maybe SOME ports support them while others do not? If not, can you force the WD to operate in a lower mode? Some drives can, either by hardware or software.

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Software RAID1 Failure Help
by Matt 09 Feb '14

09 Feb '14

I am running software RAID1 on a somewhat critical server. Today I noticed one drive is giving errors. Good thing I had RAID. I planned on upgrading this server in next month or so. Just wandering if there was an easy way to fix this to avoid rushing the upgrade? Having a single drive is slowing down reads as well, I think. Thanks. Feb 7 15:28:28 server smartd[2980]: Device: /dev/sdb [SAT], 1 Currently unreadable (pending) sectors Feb 7 15:28:28 server smartd[2980]: Device: /dev/sdb [SAT], 1 Offline uncorrectable sectors Feb 7 15:58:29 server smartd[2980]: Device: /dev/sdb [SAT], 1 Currently unreadable (pending) sectors Feb 7 15:58:29 server smartd[2980]: Device: /dev/sdb [SAT], 1 Offline uncorrectable sectors [root@server ~]# smartctl -H /dev/sda === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED [root@server ~]# smartctl -H /dev/sdb === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED [root@server ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/md2 1.4T 142G 1.2T 12% / /dev/md0 99M 37M 58M 39% /boot tmpfs 7.9G 20K 7.9G 1% /dev/shm [root@server ~]# cat /proc/mdstat Personalities : [raid1] md0 : active raid1 sdb1[1] sda1[0] 104320 blocks [2/2] [UU] md1 : active raid1 sdb2[1] sda2[0] 8385856 blocks [2/2] [UU] md2 : active raid1 sdb3[2](F) sda3[0] 1456645568 blocks [2/1] [U_] unused devices: <none> [root@server ~]# mdadm --detail /dev/md2 /dev/md2: Version : 0.90 Creation Time : Tue Jan 4 05:39:36 2011 Raid Level : raid1 Array Size : 1456645568 (1389.17 GiB 1491.61 GB) Used Dev Size : 1456645568 (1389.17 GiB 1491.61 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 2 Persistence : Superblock is persistent Update Time : Fri Feb 7 15:21:45 2014 State : active, degraded Active Devices : 1 Working Devices : 1 Failed Devices : 1 Spare Devices : 0 Events : 0.758203 Number Major Minor RaidDevice State 0 8 3 0 active sync /dev/sda3 1 0 0 1 removed 2 8 19 - faulty spare /dev/sdb3 [root@server ~]# mdadm --detail /dev/md1 /dev/md1: Version : 0.90 Creation Time : Tue Jan 4 05:39:36 2011 Raid Level : raid1 Array Size : 8385856 (8.00 GiB 8.59 GB) Used Dev Size : 8385856 (8.00 GiB 8.59 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 1 Persistence : Superblock is persistent Update Time : Fri Feb 7 14:29:36 2014 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Events : 0.460 Number Major Minor RaidDevice State 0 8 2 0 active sync /dev/sda2 1 8 18 1 active sync /dev/sdb2 [root@server ~]# mdadm --detail /dev/md0 /dev/md0: Version : 0.90 Creation Time : Tue Jan 4 05:48:17 2011 Raid Level : raid1 Array Size : 104320 (101.89 MiB 106.82 MB) Used Dev Size : 104320 (101.89 MiB 106.82 MB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Wed Feb 5 11:02:25 2014 State : clean Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Events : 0.460 Number Major Minor RaidDevice State 0 8 1 0 active sync /dev/sda1 1 8 17 1 active sync /dev/sdb1

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Re: [CentOS] OT hard disk geometry
by Miguel Medalha 09 Feb '14

09 Feb '14

The server's manual recommends filling the drive bays in the 1,2,3,4 order. At this point, you should check the HP support page for the server, Look for controller firmware updates, BIOS updates, troubleshooting advice and so on. Did you try to connect the drive alone? If it is detected alone, you will have a clue there. Some drives don't go along with some others when installed in the same pair of ports, for example. I would also suspect the cable. I have had more problems with SATA cables than I could expect. Also, the drive itself can be defective. I once received two new WD high end drives that couldn't be detected by any controller and I had to return them. The new ones worked fine.

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Re: [CentOS] OT hard disk geometry
by Miguel Medalha 08 Feb '14

08 Feb '14

With some SATA drives the mode change can only be done by a software utility. Some of them don't have jumpers at all.

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Multitab GUI SSH clilent found
by Ljubomir Ljubojevic 08 Feb '14

08 Feb '14

Hi. I just wanted to notify all that I found very nice GUI SSH client at http://sourceforge.net/projects/pacmanager/ It has rpm packages and works very nice. Multi-tab, Expact support, connections tree, connection , user and password saving (I know they should not be saved). Only manual download as far as I know, no repository caries it. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe StarOS, Mikrotik and CentOS/RHEL/Linux consultant

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Re: [CentOS] OT hard disk geometry
by Miguel Medalha 08 Feb '14

08 Feb '14

>> that I am running CentOS-6.5 on my HP MicroServer. Can you please tell us which exact model of MicroServer do you have? That way, it will be easier to help you.

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Raid on centos
by Jeff Allison 07 Feb '14

07 Feb '14

Ok I've a HP mircoserver that I'm building up. It's got 4 bays for be used for data that I'm considering setup up woth softwere raid (mdadm) I've 2 x 2TB 2 x 2.5 TB and 2 x 1TB, I'm leaning towards usig the 4 2.x TB is a raid 5 array to get 6TB. Now the data is on the 2.5TB disks currently. So the plan so far. Building the array as a degraded raid 5 with the 2 x 2TB disks that are emply. Copy the data from one of the 2.5TB disks on to array. Add now empty 2.5TB disk to the Array and wait for it to rebuild. Copy contents of remaining 2.5TB disk 2 array. Add now empty 2.5TB disk to the Array and wait for it to rebuild. So questions... Is the above a stupid idea? Do I need to get involved in gptids? on disks this size? What format should I create the file system as? Should I get lvm involved somewhere? Any pointers would be kindly appreciated. Jeff

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Discuss February 2014