Displaying 4 results from an estimated 4 matches for "2xssd".
2014 Nov 14
1
Belkin UPS, master netbook, slave MythTV server
...ttery supply
* 'master' where upsd runs
* runs upsc, upsd, upsmon, upsc, nut-cgi, apache, nagios
MythTV server with Ubuntu 14.04
* plugged into Belkin UPS
* to be turned off within 5 minutes of loss of supply
* to be turned back on after 15 minutes of return of supply (WOL?)
* 2xSSD drives, 1x4Tb 3.5", 1x250Gb 2.5"
* 'slave' system
I'm digging through the nut documentation now, I'm sure that I can
configure nut to do all of this... right?
Thanks,
Greg
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2017 Apr 08
2
lvm cache + qemu-kvm stops working after about 20GB of writes
...not):
PROBLEM
LVM cache writeback stops working as expected after a while with a
qemu-kvm VM. A 100% working setup would be the holy grail in my
opinion... and the performance of KVM/qemu is great i must say in the
beginning.
DESCRIPTION
When using software RAID 1 (2x HDD) + software RAID 1 (2xSSD) and create
a cached LV out of them, the VM performs initially great (at least
40.000 IOPS on 4k rand read/write)! But then after a while (and a lot of
random IO, ca 10 - 20 G) it effectively turns in to a writethrough cache
although there's much space left on the cachedlv.
When working...
2017 Apr 10
0
lvm cache + qemu-kvm stops working after about 20GB of writes
...writeback stops working as expected after a while with a
> qemu-kvm VM. A 100% working setup would be the holy grail in my opinion...
> and the performance of KVM/qemu is great i must say in the beginning.
>
> DESCRIPTION
>
> When using software RAID 1 (2x HDD) + software RAID 1 (2xSSD) and create a
> cached LV out of them, the VM performs initially great (at least 40.000
> IOPS on 4k rand read/write)! But then after a while (and a lot of random
> IO, ca 10 - 20 G) it effectively turns in to a writethrough cache although
> there's much space left on the cachedlv....
2017 Apr 20
2
lvm cache + qemu-kvm stops working after about 20GB of writes
...as expected after a while with a
> qemu-kvm VM. A 100% working setup would be the holy grail in my
> opinion... and the performance of KVM/qemu is great i must say in
> the beginning.
>
> DESCRIPTION
>
> When using software RAID 1 (2x HDD) + software RAID 1 (2xSSD) and
> create a cached LV out of them, the VM performs initially great
> (at least 40.000 IOPS on 4k rand read/write)! But then after a
> while (and a lot of random IO, ca 10 - 20 G) it effectively turns
> in to a writethrough cache although there's much space left o...