similar to: What FileSystems for large stores and very very large stores?

On Mon, Feb 16, 2015 at 6:47 AM, Eliezer Croitoru <eliezer at ngtech.co.il> wrote: > I am unsure I understand what you wrote. > "XFS will create multiple AG's across all of those > devices," > Are you comparing md linear/concat to md raid0? and that the upper level XFS > will run on top them? Yes to the first question, I'm not understanding the second

Hey, I am testing Glusterfs as a storage backend for dovecot as a LDA and imap server. I have seen similar lines in the logs to these: May 21 10:46:01 mailgw dovecot: imap(eliezer at ngtech.co.il): Warning: Created dotlock file's timestamp is different than current time (1400658105 vs 1400658361): /home/vmail/ngtech.co.il/eliezer/Maildir/.Mailing_lists.ceph_users/dovecot-uidlist May 21

I have a file system I am trying to resize via resize2fs but I get this error resize2fs 1.41.14 (22-Dec-2010) resize2fs: New size too large to be expressed in 32 bits im on debian squeeze 2.6.32-5-amd64 # pvs ? PV???????? VG????? Fmt? Attr PSize? PFree ? /dev/md1?? vgRAID6 lvm2 a-?? 18.17t 134.12g # lvs ? LV??? VG????? Attr?? LSize? Origin Snap%? Move Log Copy%? Convert ? data1 vgRAID6 -wi-ao

In squid we use a double layer of hashed directories on the FS to allow storage of millions of files. I was reading the "Directory hashing" section but never understood it.. since it's written.. in a way I could not understand. I am using this line: mail_location = maildir:/home/vmail/%d/%n/Maildir/ and I want to migrate to a hash based directory scheme. While trying to understand

Hello, I have a server with an 17tb scsi-storage. In past, the storage has a "jfs"-filesystem. Now i want to create a "ext4"-filesystem. I have update the e2fsprogs from 1.41 to 1.42 (16tb limit >1.41). Now I have an 17tb-storage as /dev/sda1 with ext4. I can mount this device as /home/ (/etc/fstab "/dev/sda1 /home/ ext4 defaults 1 2". Now I start a

I made a filesystem (mke2fs -j) on a logical volume under kernel 2.6.20 on a 64-bit based system, and when I try to mount it, ext3 complains with EXT3-fs: dm-1: couldn't mount because of unsupported optional features (80). I first thought I just forgot to make the filesystem, so I remade it and the error is still present. I ran fsck on this freshly made filesystem, and it completed with

On Mon, Feb 16, 2015 at 12:07 AM, Michael Schumacher <michael.schumacher at pamas.de> wrote: > Btw., are you sure you want to use XFS for a mail server? I made some > tests about a year ago and found that EXT4 is by the factor 10 faster > compared to XFS. The tests I performed were using the "maildir" style > postfix installation that results in many thousands files in

Is there a current best practice for a shared filesystem backend for mailboxes (in my case, all virtual accounts)?? NFS 3/4, GFS2, GlusterFS, other?? In the case of the latter ones, is the use of Director necessary?? Any specific anti-recommendations?? Also, if it matters, I *think* I want to use BackBlaze racks for storage.? Also, I've seen recommendations for the filesystem underneath like

Hey John, I do not require encryption at all, it's a secure and internal channel but it requires me to connect via either pptp or l2tp. This is the reason I am asking. I had the chance of finding the SoftEther Project which gives a lot in terms of VPN Client and Server. At: http://www.softether-download.com/en.aspx But yet to try it. Also they have all sorts of beta versions but not

Hello. Dovecot is not binding or listening on port 993 when I start it. $ sudo netstat -tlnp | grep -c 993 0 Dovecot starts fine and runs without complaints. $ sudo service dovecot restart Restarting IMAP/POP3 mail server: dovecot. $ sudo tail /var/log/mail.log Apr 4 13:42:39 mwjones dovecot: master: Warning: Killed with signal 15 (by pid=16238 uid=0 code=kill) Apr 4 13:42:39 mwjones

Hey Gordon, I do not have any security issue in this network. I need to connect to a remote network on a secure network. The options are pptp or l2tp(no ipsec encryption) so I do want to use l2tp like in (lac\lns) and I am looking for a client for CentOS. Note that it works in ubuntu so it is possible to achieve the same with CentOS but I do not know what is behind the gui that initiates the

Since I have lots of filtering rules in thunderbird I was thinking of using sieve instead. I want to filter incoming mail into subdirectories. like "from" store at folder "old". the script is: require ["fileinto", "envelope"]; if envelope :is "from" "eliezer at test.dom" { fileinto "old"; } else { # The rest goes into

On Tuesday 10 January 2017 08:53:17 John R Pierce wrote: > On 1/9/2017 7:11 PM, fred roller wrote: > > On Mon, Jan 9, 2017 at 12:04 PM, Frank Cox<theatre at melvilletheatre.com> > > > > wrote: > >> That sounds like a weak signal from your wifi transmitter. > > > > Or signal interference. Where is the antennae located on the server? > > Ran

I have a server currently connecting to a pptp remote server. This server(lns\lac) has the option for pptp connections and l2tp connections. The l2tp connections are not using ipsec encryption at all. I have seen couple guides\tutorials on the internet: - https://raymii.org/s/tutorials/IPSEC_L2TP_vpn_on_CentOS_-_Red_Hat_Enterprise_Linux_or_Scientific_-_Linux_6.html -

I want to configure IPV6 on the system and not use some auto ipv6 config. I have tried to use IPV6_AUTOCONF=no in interface script dose not affect anything. ifcfg-eth0: GATEWAY=192.168.1.254 IPV6INIT=no IPV6_AUTOCONF=no BROADCAST=192.168.1.255 BOOTPROTO=none NAME="" NM_CONTROLLED=yes MACADDR="" TYPE=Ethernet DEVICE=eth0 NETMASK=255.255.255.0 MTU="1500"

Hi all, Recently I have installed a centOS 5.4 server to use as a home NAS server. I need to use large files (8GB minimum) inside of it to serve via iSCSI services. Which filesystem do you recommends me to reach maximum performance: xfs, ext3, ext4, gfs2 ....?? Thanks. -- CL Martinez carlopmart {at} gmail {d0t} com

I want to make sure that while compiling as root nothing will break down inside the machine. I want to compile software on a Xeon SERVER. The basic issue is that there is a recommendation to not compile it as a root user. I have compiled software as a root user more then once and I am not sure why would there is a need to run it as non-root user? I have taken a look at the /proc/ FS but I do

You could say the same thing about computers in general: I hate them, they automated many tasks in life and took many jobs out of the market!. Eliezer ---- Eliezer Croitoru Linux System Administrator Mobile: +972-5-28704261 Email: eliezer at ngtech.co.il -----Original Message----- From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Gary Stainburn Sent: Monday, January 16, 2017

Hi, Recently I'm noticing an interesting issue. My CentOS servers are trying to send logs to a logging server via 514/udp, however I'm not receiving anything. I did the following on CentOS *tcpdump -vvv -nn udp -i esn160 port 514* In another session on the same server: *nc syslog-server -u 514* tcpdump started to show me messages like: *[bad udp cksum 0x3ce9 -> 0xb0f5!] SYSLOG,

Are we likely to see patches to allow 16TB ext3 in the mainstream kernel any time soon? I am working with a storage box that has 16x750GB drives RAID5-ed together to create a potential 10.5TB of potential storage. But because ext3 is limited to 8TB I am forced to split into 2 smaller ext3 filesystems which is really cumbersome for my app. Any ideas anybody?