El lun, 24-02-2014 a las 09:59 -0500, Paul Clements escribió: > It certainly should work. bcache is a generic block device cache. That > said, I have not actually tried it with nbd, so maybe there's some bug > preventing it from working? > Well, AFAIK the main problem is that nbd real device is a file with an in-built squashfs that resides in a remote server...
That is: I can create my local cache device by mean of "make-bcache -C /dev/sda1" but I cannot declare caching device by mean of "make-bcache -B /dev/nbd0" because returns "device busy" error.... thus cannot attach it to my local cache device . ¿Any way to bypass this? Perhaps I'm missing something about how bcache works... :-( Thanks for your attention. Cheers Juan Antonio > On Mon, Feb 24, 2014 at 7:46 AM, Juan Antonio Martinez > <[email protected]> wrote: > Hi all: > I have 250+ ubuntu 13.10 ltsp fat clients. As client hardware > is a "bit > obsolete" and don't want to buy extra memory for those > computers, we are > studying some configurations to improve performance. > > As on 13.10 BCache comes in the kernel mainline we'll want to > use local > client's disk as cache for nbd device. > > Is it possible? BCache documentation suggest it, but didn't > find any > tutorial/guide. Everything I got is a message like > "Device /dev/nbd0 is > not a partition, a logical volume or a LUKS volume" when using > "blocks > to-cache" commannd > > Thanks in advance > Juan Antonio > > > > ------------------------------------------------------------------------------ > Flow-based real-time traffic analytics software. Cisco > certified tool. > Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow > Analyzer > Customize your own dashboards, set traffic alerts and generate > reports. > Network behavioral analysis & security monitoring. All-in-one > tool. > > http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk > _______________________________________________ > Nbd-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/nbd-general > > ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ Nbd-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nbd-general
