Search results for query: bcache

...we were well committed to the conversion process. I spent virtually all of Thursday identifying the problem and trying to find of a solution. bcache's ability to use the random access advantages of a SSD, by absorbing read and write requests, prior to sequentially draining its cache to...

Many thanks, we jumped ahead of ourselves a little with bcache now supporting partitions (as of 4.13) and setup BlueStore OSDs on hdds using ssd caching... ie: Not possible for us to revert to 4.10. Teaser: FileStore OSDs with SSD journaling will generally perform better than BlueStore OSDs...

try switching off any of these: tso, gro, gso, and lro example: ethtool -K <ethx> lro off

...nf_defrag_ipv4 xt_tcpudp xt_comment xt_set xt_addrtype xt_conntrack xt_mark ip_set_hash_net ipt_REJECT nf_reject_ipv4 xt_multi port bcache ip_set ip6table_filter ip6_tables iptable_filter ip_tables softdog x_tables nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc openvswitch...

...adding complexity here / and might it just work 'simpler and better' with vanilla HW Raid. Or you can do HW Raid of (rust disks) and HW raid of (SSD disks) and do a debian-install proxmox; configure bcache layer to get SSD boost over the bare-rust-raid-disk performance; and - should be good ...

Thanks for you reply. I can not use shared storage because i delegate all hardware management on others companies than they do not support it. I can use extra servers as NFS, but it will be a unique point of failure. To have 2 NFS servers in HA is not good solutions because i must have RAID 1...

...on supermicro. And some others on "small office custom hardware builds" (blackbox AMD or intel quadcore "desktop CPU" with 32gig ram, SSD:SATA Bcache disk config local-only-storage) - they all work great. I certainly would not hesitate to use supermicro interchangeably with Dell gear in core...

...all node members as well). I am not sure how many drives you will have attached; but that might impact the usability / capability / performance expectations of the ceph config. Local storage (SATA & SSD, Bcache) is pretty awesome. and vanilla NFS is pretty good, nice and easy for test...

...install guide). End of this you will have SW Raid / disk fault redundancy / decent baseline. If you want to be fancy(ish) you can read about 'bcache' which lets you use SSD as cache/accelerator for your SATA Block storage. For such a config, you might for example (a) have a pair of SSD...

...raid disk pair - then can create a new SW raid device, composed of the other 2 disks in your set. (or bring some SSD drives in and play with bcache, and have better disk performance :-) - then attach that raid to some local place like /raid-storage - and then in proxmox tell it, "new local...

...tests on proxmox, that I simply do my own thing for unsupported Linux SW raid and it is 'cleaner, simpler, just works' and less drama. (plus bcache is easy and awesome, yay). (or deploy on hardware raid, for extremely low-drama config). (For me, life is too short for filesystem induced...

...hardware burden (RAM, CPU) for your nodes / in ways that have yet to make sense for any client projects I've done. My current go-to build is BCache SSD accellerated bulk SATA "software raid" config - minimal debian install done first for SWRaid/ Then Bcache is added / and then proxmox is...

I think the problem is solved - after adding bcache (which we are using) to the systemd-dependencies of drbd, it finally looks the way it should...

...LVM config that Proxmox will expect); and then add in proxmox after-the-fact. For added IO performance, if desired, I can recommend that 'bcache' SSD is both stable and fast. ie, for example, install to a bare server, Debian Jesse with SW raid config -- pair of SSD drives in raid; -- pair...

...problems with help from others in the forum, where possible. In case it is of interest, in case you are using local raid at all; I've found "Bcache" with SSD drives makes otherwise slow raid seem much (!) nicer to use in proxmox. Not expensive config but very good performance boost. But of...

...of Jessie/Deb8 onto a manual custom install SW Raid using ~half of the SSD drives mirrored. - reserve the remaining SSD drive space for Bcache cache volume (Mirror, SW raid) - and use the mirrored pair big-spinning-rust-SATA disks as Bcache block storage volume (Mirror, SW raid) Then do a...

...von Proxmox VE einsetzt (nur interessant wenn du dafür bezahlst), dann könntest du auch ein Software-RAID aufsetzen und darauf ein bcache oder flashcache verwenden und die SSD als Lesepuffer verwenden. Dadurch bekommst du eine etwas höhere Lese-Performance. Ist technisch aber anspruchsvoller...

I haven't experienced this problem. Actually are 2 x 1 TB SATA and 2 x 512 GB SSD. In LVM Cache I used the following setting. LV 900GB date (rotating Discs) LV 900GB cache (SSD Drives) To start, I will use this scenario, at least for now. My supplier does not have high-level SSDs disks...

I also tried bcache, flashcache and lvmcache - all with similar performance. lvmcache booted dead slow and every time I needed to restart my machine, the cache is rewritten to disk. This was a big performance killer for me. Have you similar experience? I still can't believe you're going to have...

...would like to share, for those who want to have a scenario like mine,which uses SSD to improve performance of mechanical disks. I tested the bcache, which utilizes the SATA and SSD and creates another device.With the device merged, I created a LVM and became thinpool. The result was...