Search results

all power supplies have poor efficiency at low load and 5 watts is hardly more than measurement error. I'd be interested in a full load comparison though. 3 of mine with 45 6 platter drives comes to 630 watts under an 80% write load with non VE 3rd gens. that amounts to 14W per drive including...

it's now just a dumb pass through controller. The idrac doesn't know what it is anymore since it's not speaking a language idrac understands. (ie it's not a megaraid card with a dell bios anymore). If it has a bootable bios it may or may not show up as a unique device in the server bios...

if the card is original, then something's wrong with the hardware (card, drives, cables, power etc. If you tried to flash it and something went wrong (like not following the instructions to the letter) then the card is in aa borked state and of course it won't recognise anything. If it flashed...

you are using the right tool? ie megaraid, or the dell app or the "press [any] key to access bios" of the perc right? those cards in raid mode won't show an OS anything until you set them up. That's completely divorced from the flashing question.

not sure where the above comes from, but lithium batteries will handle hundreds of full charge cycles, but thousands and thousands of partial charges. There are two reasons, as I understand it - first is heat. Charging generates heat, and if you can't get it out of the battery, they break down...

fans only in the PSUs. They're radial blowers They only exhaust air out the back, meaning a more or less constant low pressure through all the drive caddies, which is why you can't leave the empty bays open, since you'll get no useful cooling for the populated bays. You could however slow down...

Can only suggest you refer back many pages to the people who have mentioned the different revisions of the PSUs and compare to what you have. If you've got a later rev 2 or 3 that's as good as you'll get, bearing in mind that people have subjective opinions of "loud" and unless you're recording...

this sounds a like a world of hurt. The STL4 as well as being older was made for FC drives, not SAS. I've not seen one but would expect a raft of differences in things like the interposers (if indeed it has any at all - the STL3 uses the same FC backplane connectors as the STL4 but the...

that smart data says you've got an empty critical warning, and it hasn't flagged either the warning or critical temperature time. Much of this smart data is up to the interpretation of the smartctl programmers, not necessarily how the OEM uses the data. What do samsung's own tools report...

according to the manufacturer it's fine https://download.semiconductor.samsung.com/resources/data-sheet/Product_Brief_Samsung_PM983_NF1_NVMe_SSD_1806.pdf but they're only interested in making it to the end of the warranty period. Might be worth some added cooling if you care about it lasting...

you can typically access the perc via the bios or via a piece of software if you've got an OS installed. I don't do Dell so don't know what theirs is called but i 'm sure you can search for it. (like Software to manage RAID controler from OS (Windows 2019) level | DELL Technologies)

how is the array setup in the perc manager? That determines how the OS will see the 'disks'. I say that in quotes because unless you've got an IT mode HBA, everything that gets presented to the host is effectively a virtual device behind the raid controller. If you've got all eight drives as a...

in other words, does your bill have Watts(hours) or VoltAmps(hours) on it?

total power remains same regardless of power factor. Thus power =/= power factor. Power factor alters current draw and thus parasitic loss due to impedance. And a fraction of a small number is..... a small number. On top of that, unless you're a significant industrial electricity consumer you...

High Command Timeout on Seagate Exos Drive : r/DataHoarder [BUG] Command Timeout on Seagate Exos 7E8 · Issue #687 · AnalogJ/scrutiny

somehow good advice doesn't align with your handle and avatar :P

if you can get an m.2 to pcie slot adapter, why aren't you just putting an ordinary HBA on one of them? M.2 to PCIe x16 Graphics Card Adapter Cable With SATA Power Cable Accessories | eBay Australia

just some things to think about 1. Are you cabling the shelves correctly? upload to download for example not upload to upload between chained shelves 2. Are all shelves running the same IOM? 3. Are all running the same firmware? 4. Are the cables working properly? Are they connected to the...

My earlier comment was based on the fact that the 2008 is the common 'published by the OEM to have alternate IR/IT capability'. In IR firmware they only offered RAID 0,1,10 levels. The 2108 and 2208 were not advertised by the OEM as changeable and came with additional raid 5,6,50,60 modes. A...

You can crossflash a 2208 to IT mode ( Guide: Flashing H310/H710/H810 Mini & full size to IT Mode | ServeTheHome Forums ). If you're desperate you could dig up the technical specs ofo both for a compapre and do some legwork based on fodeesha work. Otherwise, you're probably down to just...