Find all needed information about Drbd Trim Support. Below you can see links where you can find everything you want to know about Drbd Trim Support.
https://www.linbit.com/en/drbd-on-ssd-faster-resync/
Nov 04, 2014 · When DRBD 8.4.4 integrated TRIM/Discard support, a lot of things got much better… for example, 700MB/sec over a 1GBit/sec connection. As described in the Root-on-DRBD tech guide, my notebook uses DRBD on top of an SSD; apart from the IO speed, the other important thing is the Trim/Discard support.
https://forum.proxmox.com/threads/kvm-lvm-drbd-ssd-low-performance.23117/page-2
Aug 21, 2015 · Re: KVM + LVM + DRBD + SSD low performance : SOLVED!!! Alright, at my last job we had a similar problem with storage performance inside VMs. Outside the VMs on the hypervisor level we had huge performance when doing I/O tests but inside the VMs it was miserable. Mind you this was not a …
http://www.buildcomputers.net/trim-support.html
That's why TRIM is so crucial: It makes sure that your SSD performance doesn't degrade with use, and keeps it (nearly) as fast as new. In order for TRIM to work its magic, two conditions have to be met first: Your operating system has to support TRIM command (e.g. Windows 7 and Windows 8) Your solid state drive's firmware has to support TRIM as ...
https://lore.kernel.org/patchwork/patch/672052/
Apr 25, 2016 · From: Lars Ellenberg <[email protected]> We will support WRITE_SAME, if * all peers support WRITE_SAME (both in kernel and DRBD version), * all peer devices support WRITE_SAME * logical_block_size is identical on all peers. We may at some point introduce a fallback on the receiving side for devices/kernels that do not support WRITE_SAME, by open-coding a submit loop.
https://docs.linbit.com/docs/users-guide-9.0/
This DRBD client is an easy way to get data over the wire, but it doesn’t have any of the advanced iSCSI features like Persistent Reservations. If your setup has only basic I/O needs, like read, write, trim/discard and perhaps resize (eg. for a virtual machine), you should be fine.
https://docs.linbit.com/man/v9/drbd-conf-5/
Until DRBD 8.4.1, disk-barrier was turned on if the I/O stack below DRBD did support barriers. Kernels since linux-2.6.36 (or 2.6.32 RHEL6) no longer allow to detect if barriers are supported. Since drbd-8.4.2, this option is off by default and needs to be enabled explicitly.
https://www.linbit.com/en/tag/trimdiscard/
DRBD and SSD: I was made for loving you November 4, 2014 / 2 Comments / in News , Tech-Blog / by flip When DRBD 8.4.4 integrated TRIM/Discard support, a lot of things got much better… for example, 700MB/sec over a 1GBit/sec connection.
https://en.wikipedia.org/wiki/Distributed_Replicated_Block_Device
DRBD is a distributed replicated storage system for the Linux platform. It is implemented as a kernel driver, several userspace management applications, and some shell scripts.DRBD is traditionally used in high availability (HA) computer clusters, but beginning with DRBD version 9, it can also be used to create larger software defined storage pools with a focus on cloud integration.License: GNU General Public License v2
https://patchwork.kernel.org/patch/9676835/
Apr 12, 2017 · Linux only used it for zeroing, for which we have better methods now. Signed-off-by: Christoph Hellwig <[email protected]>--- drivers/block/drbd/drbd_main.c 28 ...
https://serverfault.com/questions/658843/drbd-corosync-pacemaker-servers-wont-connect-after-failover
I got 2 servers configured with drbd, corosync with pacemaker. It is all working fine, primary server gets secondary if it fails, and secondary gets primary. But if the 1st server comes up again a...
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