My drbd replication channel is dedicated crossovered gigabit nic Thank you for any confirmation.
Robert Le mail ti raggiungono ovunque con BlackBerry® from Vodafone! -----Original Message----- From: [email protected] Sender: [email protected] Date: Fri, 13 Aug 2010 12:00:02 To: <[email protected]> Reply-To: [email protected] Subject: drbd-user Digest, Vol 73, Issue 15 Send drbd-user mailing list submissions to [email protected] To subscribe or unsubscribe via the World Wide Web, visit http://lists.linbit.com/mailman/listinfo/drbd-user or, via email, send a message with subject or body 'help' to [email protected] You can reach the person managing the list at [email protected] When replying, please edit your Subject line so it is more specific than "Re: Contents of drbd-user digest..." Today's Topics: 1. Re: Initial sync, just want to confirm the process (and not go down in a blaze of glory) (Simon Billis) 2. Re: Initial sync, just want to confirm the process (and not go down in a blaze of glory) (Simon Billis) 3. Disk I/O direct vs. Drbd ([email protected]) 4. Re: Disk I/O direct vs. Drbd (Bart Coninckx) ---------------------------------------------------------------------- Message: 1 Date: Fri, 13 Aug 2010 09:24:22 +0100 From: "Simon Billis" <[email protected]> Subject: Re: [DRBD-user] Initial sync, just want to confirm the process (and not go down in a blaze of glory) To: "'Lars Ellenberg'" <[email protected]>, <[email protected]> Message-ID: <00ce01cb3ac0$ef21e960$cd65bc...@com> Content-Type: text/plain; charset="iso-8859-1" Lars Ellenberg sent a missive on?2010-08-13: > On Fri, Aug 13, 2010 at 07:00:50AM +0100, Simon Billis wrote: >> Hi, >>> Subject: Re: [DRBD-user] Initial sync, just want to confirm the >>> process (and not go down in a blaze of glory) >>> >>> Hmm sorry Dan, but this has left me a little confused. As I said in my >>> first post, storage00 is LIVE and has around 4TB of data on it, I have >>> a dedicated gigabit NIC for drbd, (the machine has 6 network cards in >>> it, 4 for MPIO iSCSI, 1 for managment/heartbeat, 1 for DRBD) I have >>> already setup storage01 and have issued drbdadm create-md meta and >>> drbdadm create-md data on the secondary machine, I haven't started >>> drbd on it as it needs to be rebooted first, hence why I'm now a >>> little cautious on the reboot of the machine. >> >> I'm not sure why you will need to reboot, you should be able to >> bring the drbd resource into secondary mode right away with the >> following commands >> >> #On the primary node (storage00) check the status with drbdadm >> status >> >> #You should see something like: >> [r...@raid-primary ~]# drbdadm status <drbd-status version="8.3.8" >> api="88"> <resources config_file="/etc/drbd.conf"> <resource >> minor="1" name="drbd1" >> cs="StandAlone" ro1="Primary" ro2="Unknown" >> ds1="UpToDate" ds2="DUnknown" /> > > Uh. > > !? > > Why would you voluntarily parse pseudo-xml with your eyes? > That output is meant to be consumed by scripts or the DRBD MC Gui. > > Try: > # drbd-overview > or > # cat /proc/drbd > or > # grep cs: /proc/drbd > Thanks for the suggestion - I agree it's easier to read. Live and learn :-) ------------------------------ Message: 2 Date: Fri, 13 Aug 2010 09:27:55 +0100 From: "Simon Billis" <[email protected]> Subject: Re: [DRBD-user] Initial sync, just want to confirm the process (and not go down in a blaze of glory) To: "'Simon Billis'" <[email protected]>, "'Lars Ellenberg'" <[email protected]>, <[email protected]> Message-ID: <00cf01cb3ac1$6e19e100$4a4da3...@com> Content-Type: text/plain; charset="iso-8859-1" Simon Billis sent a missive on?2010-08-13: > Lars Ellenberg sent a missive on?2010-08-13: >>> #You should see something like: >>> [r...@raid-primary ~]# drbdadm status <drbd-status version="8.3.8" >>> api="88"> <resources config_file="/etc/drbd.conf"> <resource >>> minor="1" name="drbd1" >>> cs="StandAlone" ro1="Primary" ro2="Unknown" >>> ds1="UpToDate" ds2="DUnknown" /> >> >> Uh. >> >> !? >> >> Why would you voluntarily parse pseudo-xml with your eyes? >> That output is meant to be consumed by scripts or the DRBD MC Gui. >> >> Try: >> # drbd-overview >> or >> # cat /proc/drbd >> or >> # grep cs: /proc/drbd >> > > Thanks for the suggestion - I agree it's easier to read. Live and learn > :-) I guess that it comes from using earlier versions of drbd than 8 :-) - just goes to show RTFM ;-) ------------------------------ Message: 3 Date: Fri, 13 Aug 2010 08:42:13 +0000 From: [email protected] Subject: [DRBD-user] Disk I/O direct vs. Drbd To: [email protected] Message-ID: <1936187021-1281688929-cardhu_decombobulator_blackberry.rim.net-15126128...@bda035.bisx.produk.on.blackberry> Content-Type: text/plain; charset="Windows-1252" In my linux system, I/O expecially write speed is 90MB/sec Installing drbd makes it slow to 30MB/sec. I suppose that drbd tracking and logs processes are obviously write and read consumers. My question is if you confirm that this ratio 90MB/sec that slows to 30 is to be considered as expected with drbd in between. The configuration of both the pcs is 1 sata drive for linux and 1 sata drive for drbd. Please also note that I have not set any value for al-extents. Thank you Robert Le mail ti raggiungono ovunque con BlackBerry? from Vodafone! ------------------------------ Message: 4 Date: Fri, 13 Aug 2010 10:47:49 +0200 From: Bart Coninckx <[email protected]> Subject: Re: [DRBD-user] Disk I/O direct vs. Drbd To: [email protected], [email protected] Message-ID: <[email protected]> Content-Type: Text/Plain; charset="windows-1252" On Friday 13 August 2010 10:42:13 [email protected] wrote: > In my linux system, I/O expecially write speed is 90MB/sec > > Installing drbd makes it slow to 30MB/sec. > > I suppose that drbd tracking and logs processes are obviously write and > read consumers. > > My question is if you confirm that this ratio 90MB/sec that slows to 30 is > to be considered as expected with drbd in between. > > The configuration of both the pcs is 1 sata drive for linux and 1 sata > drive for drbd. > > Please also note that I have not set any value for al-extents. > > Thank you > Robert > Le mail ti raggiungono ovunque con BlackBerry? from Vodafone! > _______________________________________________ > drbd-user mailing list > [email protected] > http://lists.linbit.com/mailman/listinfo/drbd-user > That is way too slow. What is your network situation in between the two? ------------------------------ _______________________________________________ drbd-user mailing list [email protected] http://lists.linbit.com/mailman/listinfo/drbd-user End of drbd-user Digest, Vol 73, Issue 15 ***************************************** _______________________________________________ drbd-user mailing list [email protected] http://lists.linbit.com/mailman/listinfo/drbd-user
