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Hi @whitey, did you ever test the ZeusRAM with faster backing pool? I'm curious if you'd get better performance with striped mirrors or an SSD pool. Or was there some reason you thought the ZeusRAM was the bottleneck?

You have to consider the impact to your workload if you lost the slog unexpectedly. Data is not at risk but if your VMs grind to a fraction of their expected IO performance it might as well be an outage in most environments.

I didn't realize until now how old mine is. I have 4.8.14 on server 2012 R2 with 2GB allocated. 850MB in use, 1130MB Standby, 64MB Free.

I have used RDM drives with a napp-it VM and performance was reasonable, though I did not benchmark it against bare metal. My hardware did not allow passthrough. A big warning though, if a drive goes off line and the VM needs to restart, ESXi will not power the VM back on until the missing...

Thanks, I've got a bunch of gear on the bench that I'm dying to try it with. I need another HBA though, and I can't help but buy hardware in even multiples. Probably should get some more 10Gbe adapters too... and some 16GB DDR3 RDIMM... LOL

Hi T_Minus, have you seen this write up by ewwhite from stackexchange? Home · ewwhite/zfs-ha Wiki · GitHub

I got four of the Seagate Backup Plus Hub 8TB USB 3.0 drives on boxing week for moving some old backups off a RAID10 of 12x 2TB SAS drives. Crystaldiskinfo reports the model to be ST8000AS0002, archive drives. I expected them to be slow, but some of them are writing at an unexpectedly fast...

How about mounting it by NFS to your NAS? If it's media files you shouldn't need to present block level to your VM.

I believe you cannot pass through your disk controller because the disk with the the ESXi install is attached to it. Regarding your disk performance, 1) ACHI controllers perform poorly because the devices (or is it just the drivers?) have a low queue depth. Many folks hit this limit hard when...

Hey everybody! I have many things to post about, but in the short term I'm wondering if anyone has CP016549.scexe (MD5 c17234f0ca5b932c5fa17c76b1149fc8) on hand? Google says it should be in ftp.hp.com/ftp2/pub/softlib2/software1/sc-linux-fw-array/p1255957429/v74127/ but that directory appears...

Here's some completely unscientific CrystalDiskMark results, the 4K QD1 looks good, we'll see what happens when I get them to the colo and use them as slog devices: Drive one Sequential Read : 648.370 MB/s Sequential Write : 448.301 MB/s Random Read 512KB ...

I wasn't certain what VSL to download when I received my ioDrive with firmware 6.0.0.107006. I thought it may be helpful to compile a list of firmware revisions. fusion_3.2.10-20150212.fff (Windows, 3.2.10) FPGA 7.1.17.116786 fusion_3.2.8-20140508.fff (Windows, 3.2.8) FPGA 7.1.17.116786...

I downgraded VSL to 3.2.8, intending to flash the fusion_3.2.8-20140508.fff firmware that comes with it. I haven't changed firmware yet, however fio-status looks much better now. Reserve space status: Healthy; Reserves: 100.00%, warn at 10.00% The active media is now shown to be 100%. I'm not...

I've downloaded and run ioSphere on windows 7 tonight with no license or support. It's a separate download category in line with ioDrive on the support site.

So I've officially hijacked this thread... This doesn't look so good to me Reserve space status: WARNING: Nearing reserve space wear-out; Reserves: 0.00%, warn at 10.00% Active media: 0.00% Lifetime data volumes: Physical bytes written: 197,879,967,514,104 Physical bytes read ...

Here's what the update looked like if anyone wonders fio-update-iodrive fusion_3.2.10-20150212.fff WARNING: DO NOT TURN OFF POWER OR RUN ANY IODRIVE UTILITIES WHILE THE FIRMWARE UPDATE IS IN PROGRESS Please wait...this could take a while WARNING: IF YOU ARE UPGRADING FROM VSL 2.x.x, AFTER...

I've bought two of these FS1-003-353-CS. $199 EA, $50 shipping to Canada (USD) I installed the VSL software from SanDisk. Current firmware is Firmware v6.0.0, rev 107006 Public Before I try flashing this with fusion_3.2.10-20150212.fff should I consider HP OEM or other drivers? Is there any...

Thanks TuxDude. Have you used the N5K switch much? Can you confirm that it's got the somewhat unique ability to link to 1Gbit devices, with 1Gbase-T SFP transceivers?

I'm about to buy a Cisco Nexus n5k-5020-bf on eBay and wanted to check if there's any gotchas with these switches. It will be used in a colo so no worry about noise from the switch, I'm just looking for good price/performance/reliability. I like the layout, with all the power and network...

1st, I beleive there is an issue with FreeBSD's NFS server either not supporting the 64KB transfer size that an ESXi client would use, or it splits it up into 4K chunks when writing to the drive. 2nd, I'm not sure if device cache is ever used with slog devices, but when using a partition or...