search for: coraid

Hello My company is changing server software to CentOS on Dell equipment. At the same time we are expanding our RAID system from standard SCSI to either SATA, or the technology brought forward by Coraid using the AoE protocol. Before we take the final decision I am looking for some real experience with Coraid products on a scale of 30+ disks. We will be using a cluster of four servers with a mix of RAID10 and RAID5. Does anyone have any experience into this area Regards Eiliv Haugland Net...

From: Bryan J. Smith [mailto:thebs413 at earthlink.net] > > CORAID will _refuse_ to allow anything to access to volume after one > system mounts it. It is not multi-targettable. SCSI-2, iSCSI and > FC/FC-AL are. AoE is not. As I understand it, Coraid will allow multiple machines to mount a volume, it just doesn't handle the synchronization. So you c...

Anyone tried to use ocfs2 on a coraid? So far I've found that I had to crank the heartbeat threshold up. Anything else I should know about? I'm running the ocfs2 version that comes with kernel 2.6.16.7 (is there something more recent I should use?) and ocfs2-tools and ocfs2console both v1.1.5 backported to debian stabl...

Hello, Is anyone using zfs over coraid aoe? I was thinking about creating a bunch of single disk lblades and then mirroring or raidz them using zfs. Does anyone have any experiences they would like to share? -- This message posted from opensolaris.org

...sed Avail Use% Mounted on /dev/hda2 9.7G 5.8G 3.4G 64% / /dev/hda1 99M 20M 75M 21% /boot /dev/hda4 102G 2.2G 94G 3% /home /dev/md2 221G 90G 120G 43% /mnt/storage none 1014M 0 1014M 0% /dev/shm /dev/mapper/lvg01-coraid 812G 693G 114G 86% /mnt/coraid There are a few layers on this partation, so I figured I'd start at the top with you guys and work my way down. The partation this size limit is on looks like so... /mnt/coraid +--------+ | Ext3 | +--------+ | LVM 2 | +--------+...

...carries a high business value and needs a lower risk solution. Remember risk is a cost. regards Dave www.hornfordassociates.com >Nick Bryant >Subject: [CentOS] ATA-over-Ethernet v's iSCSI > >Just wondering if anyone out there has any opinions or better still >experience with Coraid's AoE products in a centos environment? > >We're looking at developing a very basic active/standby 2 node cluster >which will need a shared storage component. It would be a huge bonus if >other servers could also use the storage device. Originally I was looking >at the Dell/E...

Hi, I'm going to set up a new storage for our email users (about 10k). It's a network attached storage (Coraid). In your opinion, what is the best file system for mail server (pop3/imap/webmail) purpose? Thank you

I am considering building a pair of storage servers that will be using CentOS and GFS to share the storage from a Coraid (SATA+Raid) EtherDrive shelf. Has anyone else tried such a setup? Is GFS stable enough to use in a production environment? There is a build of GFS 6.1 at http://rpm.karan.org/el4/csgfs/. Has anyone used this? Is it stable? Will I run into any problems if I use CentOS 3.5 with it's GFS pac...

Hi, I have an XCP 0.5 box running a few DomUs some of the DomU''s data is stored at (clustered lvm volumes on) a Coraid etherdrive box which is connected via an Ethernet cable to a dedicated card of the XCP box, for which in the network config I'' ve specified: MTU=9344: xe network-param-list uuid=.... gives: MTU ( RW): 9344 on the DomUs if I leave the MTU at 1500 (default settings) everything works (slowly,...

W dniu 2014-12-01 o 18:19, Alessio Cecchi pisze: > > Il 01/12/2014 17:24, absolutely_free at libero.it ha scritto: >> Hi, >> I'm going to set up a new storage for our email users (about 10k). >> It's a network attached storage (Coraid). >> In your opinion, what is the best file system for mail server >> (pop3/imap/webmail) purpose? >> Thank you > Hi, > > XFS, if you can use RHEL/CentOS 6, ext4 with others distro. Hi! Does XFS works better on RHEL than on others distro?;)

Hi, Since few days I noticed very high load on my mailserver (Centos 6.6 64bit, 8 GB RAM, 2 x CPU 3.00GHz I am using Dovecot + Postfix + Roundcube + Nginx. I have about 10000 users. Spool is on network attached storage (Coraid). File system is ext4 (mounted with noatime). Problem appears almost every morning (while load is normal during afternoon). I suspect that this can be related to some user that have so many messages in his mailbox. How can I troubleshoot this? Here some messages that I got in maillog: Warning:...

I am in the process of completely overhauling the storage setup here and plan to go to glusterfs. The storage involved is 8x Coraid units, 2x JetStor and a Dell MD3000. The Coraid and JetStor are network connected via ATA over Ethernet & iSCSI. The disks are also being upgraded to 1TB in the process. I do plan to use unify to bring most if not all the storage together. My first question is that since these units are...

I have an OCFS2 filesystem on a coraid AOE device. It mounts fine, but with heavy I/O the server self fences claiming a write timeout: (16,2):o2hb_write_timeout:164 ERROR: Heartbeat write timeout to device etherd/e0.1p1 after 12000 milliseconds (16,2):o2hb_stop_all_regions:1789 ERROR: stopping heartbeat on all active regions. Kernel...

...somewhere since I did this (which was as recent as 3.0.4-1) the kernel build now does things a bit different. Apparently there is some sort of build-.... directory where things happen now. This is a problem. I build a number of things against these kernels, not the least of which include Coraid''s AoE drivers and Redhat''s CMAN and DLM stuff. I was able to get kernel source directories by adjusting buildconfigs/ mk.linux-2.6-xen. I changed the line that read: LINUXSRC_DIR=.... to: LINU This still requires me to build my kernels a second time to get a good build...

Alain Terriault wrote: > Just wondering if any one ever consider/use Coraid for massive storage > under CentOS? > http://www.coraid.com > It seems like a very reasonable option.. comments ? I have one of those installed on CentOS 4.6 with 1TB of storage. I'm sharing it between three servers. I can't say how well it works for multi-TB storage, but it wor...

...eason? This is my conf: # dovecot -n # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-71.el6.x86_64 x86_64 CentOS release 6.6 (Final) auth_mechanisms = plain login digest-md5 cram-md5 disable_plaintext_auth = no first_valid_gid = 89 first_valid_uid = 89 mail_gid = 89 mail_location = maildir:/coraid-s2l2/domains mail_uid = 89 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date imapflags notify mbox_w...

...a different network storage. >> Now, several users are complaining about duplicate message that are fetched by their clients (Outlook, Microsoft Outlook). >> What is the reason? > >How did you moved the message to the other network storage? > >> mail_location = maildir:/coraid-s2l2/domains > >- -- >Steffen Kaiser >-----BEGIN PGP SIGNATURE----- >Version: GnuPG v1.4.11 (GNU/Linux) > >iQEVAwUBVIqq2Xz1H7kL/d9rAQJqJgf/ZYLDY6IwdTcSUFXRdFlvyv37QW/R0fm0 >Ki8izVuOHRNK2/YEubN2+TVouOD7X3COkYa8RCu8XSoWRiFKSl0PMHNsVqUIocA1 >fEQOnY54nmdERsZ/+w8xLW5UZ2jKH12X...

Hi, at moment I have this environment: CentOS nginx + phpfpm Dovecot, with Maildir format Postfix Roundcube MySQL backend about 10000 mailusers dual core Intel(R) Pentium(R) D CPU 3.00GHz 8 GB RAM network storage device (Coraid), ext4 file system I have no performance issue now, but I need to move to a different server: FreeBSD 10.1-RELEASE nginx + phpfpm Dovecot Postfix Roundcube dual core Intel(R) Xeon(R) CPU 5120 @ 1.86GHz 16 GB RAM local storage with zfs file system My question is: is better to use S...

On Coraids (Inventor of AoE) website, they claim the?r drivers will also work on Solaris. So my question is: Will there be any technical limitations regarding implementation of ZFS and AoE ? If not yet possible, the developers of OpenSolaris might consider this option as a natural step I guess. What do Y...

...t duplicate message that are >fetched >>> by their clients (Outlook, Microsoft Outlook). >>>>> What is the reason? >>>> >>>> How did you moved the message to the other network storage? >>>> >>>>> mail_location = maildir:/coraid-s2l2/domains >>>> >>>> - -- >>>> Steffen Kaiser >>>> -----BEGIN PGP SIGNATURE----- >>>> Version: GnuPG v1.4.11 (GNU/Linux) >>>> >>>> iQEVAwUBVIqq2Xz1H7kL/d9rAQJqJgf/ZYLDY6IwdTcSUFXRdFlvyv37QW/R0fm0 >>>>...