similar to: centos 6 and XFS

we recently deployed some large XFS file systems with centos 6.2 used as NFS servers... I've had some reports of a problem similar to the one reported here... http://www.linuxquestions.org/questions/red-hat-31/xfs-inode64-nfs-export-no_subtree_check-and-stale-nfs-file-handle-message-855844/ these reports are somewhat vague (third indirectly reported via internal corporate channels from

So whats good practice for installing Java/JDK and Tomcat for EL6 these days? The base repository included Tomcat6.6 is built with GCJ which I'd rather avoid. I'm fine with using OpenJDK ... Do most folks just use the Apache tarball for Tomcat and install it in a user directory or /opt/something ? -- john r pierce N 37, W 122 santa cruz ca

On May 06, 2016, at 12:29 PM, John R Pierce <pierce at hogranch.com> wrote: On 5/6/2016 11:19 AM, Wes James wrote: sudo resize2fs /dev/lvname/root I get: resize2fs: Bad magic number in super-block while trying to open /dev/lvname/root Couldn't find valid filesystem superblock. what file system type is this /dev/lvname/root ? I tried to find the type from blkid /dev/sda4

so whats the scoop on PHP53 for CentOS 5? I have a long running webserver, runs a bunch of mostly php+postgresql stuff, mostly hobby sites (clubs and local scout troops and such). has latest updates to php 5.2.10-xx but I want to install something thats insisting on php53. If I try and yum install php53, it says it conflicts with php-5.2.10 ... ok, do I remove the old PHP and install

Hi John, Thanks for the explanation. I looked at the BIOS and found the following where the pseudo MAC address is from: ################################################################################ Planar Ether 1 MAC Address: E4:1F:13:77:16:5F ============> This is shown in ifconfig eth0 Planar Ether 2 MAC Address: E4:1F:13:77:16:60 ============> This is shown in ifconfig eth1 BMC

On 8/4/2015 12:47 PM, James A. Peltier wrote: > Some older 32-bit software will likely have problems addressing any content outside of the 2^32 bit inode range. You will be able to see it, but reading and writing said data will likely be problematic The 99% of software that just does open,read,write will be fine regardless of word size. NFS is the only broken thing I ran into (on CentOS 6

so I want to install c6.2 x86_64 onto a 2.7TB /dev/sda ... its a virgin machine with no software, using pxe boot. disk druid or whatever seems to only want to let me have like 2tb of default stuff, I'm guessing because its not using GPT? do I need to preboot into a shell or something and use parted before I can install ? -- john r pierce N 37, W 122 santa

I have a pair of centos 6 systems, with a rather large raid thats DRBD replicated from box 1 to box 2... box 1 mounts this as /data when box 1 reboots, /data doesn't get mounted, but the drbd replication starts up just fine. the entry in fstab is... /dev/drbd0 /data xfs inode64 1 0 once the system is booted up, if I `mount /data`, it mounts just fine.

On 11/9/2015 11:34 AM, Valeri Galtsev wrote: > I wonder how filesystem behaves when almost every file has some 400 hard > links to it. (thinking in terms of a year worth of daily backups). XFS handles this fine. I have a backuppc storage pool with backups of 27 servers going back a year... now, I just have 30 days of incrementals, and 12 months of fulls, but in backuppc's

Hi, Can CENTOS be used with ext3 or ext4 partitioning? Steve > On Mar 23, 2015, at 4:47 PM, John R Pierce <pierce at hogranch.com> wrote: > > On 3/23/2015 1:24 PM, Stephen Drotar wrote: >> Everytime I restart Centos 7 I receive a error saying? >> >> metadata is corrupt >> >> and then I need to go through the process of mount and unmount

5.7 32bit server system (headless coloc server), long running, long time stable. I need the flac utils... [root at freescruz ~]# rpm -qa |grep flac (nothing installed) [root at freescruz ~]# yum install flac-devel Loaded plugins: fastestmirror, priorities Loading mirror speeds from cached hostfile * base: mirror.5ninesolutions.com * extras: mirror.grikare.com * rpmforge: apt.sw.be *

I'm interested in the idea of sharing a bunch of SAS JBOD devices between two CentOS servers in an active-standby HA cluster sort of arrangement, and found something about using scsi3 persistent reservations as a fencing method. I'm not finding a lot of specifics about how this works, or how you configure two initiator systems on a SAS chain. I don't have any suitable

I've been asked for ideas on building a rather large archival storage system for inhouse use, on the order of 100-400TB. Probably using CentOS 6. The existing system this would replace is using Solaris 10 and ZFS, but I want to explore using Linux instead. We have our own tomcat based archiving software that would run on this storage server, along with NFS client and server. Its a

I have a large raid (lsi megaraid sas2 9261-8i card) and when I use parted to initialize it as the one big partition I want, it gives me a warning. # parted /dev/sda "mklabel gpt" Warning: The existing disk label on /dev/sda will be destroyed and all data on this disk will be lost. Do you want to continue? Yes/No? yes # parted -a optimal /dev/sda

I have a couple development servers running centos 6.3 64bit that have LSI 9211-8i SAS2 controllers connected to a SAS2 backplane. these work fine with SATA hard disks (populated with a bunch of 3TB SATA drives)... I'm trying to install a OCZ Vertex3 SSD on each of the two servers to do some ssd caching tests... system sees the drive, so I do the following... # parted -a min

whats the state of support for self-encrypting drives in CentOS 6 ? these are becoming increasingly common on both laptops and for enterprise storage (particularlly nearline), with features like instant-erase via key destruction. -- john r pierce N 37, W 122 santa cruz ca mid-left coast

to date, I've done all my administration on a manual 1 at a time basis, as each system has been pretty much unique. its looking like I might need to setup a deployment of a dozen or 2 basically identical machines, all running pretty much the same sorts of stuff. I have zero experience with the sorts of management tools folks use to automate this type of configuration, both initial setup,

i've maintained a local centos repository at work using rsync, but it seems the corp honchos have decided to block rsync at our firewall, plus its never been 100% reliable, I'd get aborts on protocol errors sometimes several times before pulling down a complete new distro update. i'm trying to figure out how to do this with lftp, and its got me somewhat stymied. I'm testing

i'm configuring a storage server with CentOS 6.2, it uses a LSI MegaRAID SAS controller, I'm using LSI's megacli to configure the storage... Any ideas on how to get drive failure notifications out of this system? I'm configuring hot spares but I'd still like some sort of notification when a drive has failed so the spare can be replaced. -- john r pierce

So I'm curious how SAS JBOD arrays and linux MDraid as implemented in CentOS6, and SES (SCSI/SAS Enclosure Services) backplane controllers 'get along' and how much configuration is needed to get the warning lights to work properly. scenario: whitebox server with a SAS backplane or two, daisy chained on a SAS HBA (like an LSI Logic 2008), and disks organized as several raid5/6