steven_76
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Posts posted by steven_76
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dear,
im a happy pro license user, very hppy, might add.
i have 9 disks currently, some ssd & HDD mixed with an ssd cache. works wonderful - 14.8 tb total and 3.25tb free
now, im getting notifications that a disk is about the be full (91% or smthg thereabout) but why does the system norify me about?
why doesnt it just write on another (free) disk?
allocation method is "high-water" (means that if a disc is full, it moves on to the next, right?)
thanks in advance for the replies
BR
S.
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i see something about "not set to automount" in the log...but before i havd also rebooted and they came back fine, dont understand
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it appears to be related to some old SSD that i had connected for fun. its an old Intel SSD of 20GB (connected for fun) but the system didnt dtect on it. never minded it actually. now during the reboot, it seems to have prevented detections of other disks
i removed that one and all is back to normal. quite strange
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3 reboots, now they are back, my god, what a scare that was
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after a simple reboot, 5 disks are not bein seen by the system !!!
i have 2 raid cards and 6 sata ports on the MOBO, all of which work brilliantly until this morning. the disppeared disks are on all controllers, so it snot 1 controller that went dead all of the sudden
i took the system offline because i wanted to add a cache drive, and now this - im very not happy, this is the opposite of why i have unRAID in the first place
priori to reboot, i did change the ip adress from dynamic to static, changed the DNS from my provider to google's and specified metric 1, but i dont see how that can lead to 5 discs missing
any help urgently appreciated !
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3 hours ago, JorgeB said:
It's not, although the 9240 is a megaraid model, it's a "lite" one, it uses the standard HBA chipset and can be flashed to IT mode, the 9260 can't.
thats bad , thanks god i didnt pay a lot for. can keep it in the box then and offer straight back for sale ((
any hints to where i can score a card which offers 8 SATA connections for (very) good price in the EU ??
i usually buy in azerty.nl and alternate.be but there are not 8-port sata cards (and i needs to be max PCI 2.0 16x because MB)
finding a good card isnt easy, it appears (
got my self brandnew cables by card wont work now, ))
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On 11/26/2020 at 2:35 PM, JorgeB said:
This is not good for Unraid, look for a regular LSI HBA instead, not megaRAID models.
kind of selectively missed that
i have found a thread about re-flashing raid controllers, i will inform myself on that because i already have the card. i saw 9240-8i in the list of supported models and figured 9260-8i would be the same thing more or less
ah well, guess ill soon find out
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2 hours ago, JorgeB said:
Also have some 2.5" drive cages:
looking good , i like those status lights )) one can never have enough lights ))
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2 hours ago, trurl said:
Maybe I missed it, but I don't think anyone mentioned a possibly more important reason to not have SSDs in the parity array with HDDs.
No disk in the parity array can be written faster than parity.
that is an important little piece of info guys !!
ok so i should ask santa for a big ass SSD drive as parity, roger
that may be chrismtas 2023 ))
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excellent, thanks all of you. i implement my cache drive in the weekend (i love to work on my NAS to be honest.)
i have procured a second hand LSI MegaRAID SAS 9260-8i and some new breakout cables, ànd a recovery 256Gb SSD from work and a black friday score of 2TB SSD ))
so i wish you all a very nice weekend indeed
br
steven
PS can we post pictures somewhere of our build? i found these great 2.5" drive cages who take up one 5.25" slot, and they are in black mesh kinda, it fits the case perfectly, i think im in love )))
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according to this here artical, TRIM is a nice-to-have , perfromance-wise and health-wise. but all basic functions will be there (ie garbage collection is not broken)
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57 minutes ago, JorgeB said:
Trim is supported for any pool devices, currently not supported for array devices.
hi Jorge, and is this a future that we could expect in the middle-long future? im happy with unRAID in fact, its right on my level
i have currently 3 (soon 4) SSD devices in my array, works flawlessly , i may add
does this TRIM problem mean that , if i delete data on one of the SSD's, this space will not be recovered? (made available again)
BR
Steven
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37 minutes ago, ChatNoir said:
And I forgot the first part of your question. Yes it should improve the write performance, but how much will depend of your system.
I max out my gigabit connection between my SSD in my computer and the Cache in my server. And if you have a network speed higher than 1 Gbps, the benefit would be higher.
If you are copying from an HDD to the server, the benefit might be less significant.
im also on Gigabit switches, i max on 113MB, same. not sure if its realistic to buy 10Gb netwokr infra for all my machines, might be a nice project for the future
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44 minutes ago, ChatNoir said:
Cache is generally set up to transfer files to the Array during a low usage period. The default value is around 3am I think.
To evaluate the size you would need, you should consider how much you tend to write to the Array each day.
The protection will depend on the number of devices in you cache. With a single device, there will not be any protection as you guessed. If you have more than one, then it will be set up to RAID1 by default. You can then change the default value to RAID0, 5,6,10, etc depending on your needs an the number of disks.
SSDs are not generally a good idea in the Array as TRIM is not available. However, since unRAID 6.9 (actually in beta) it is possible to have several disk Pools (for example, the Cache drive(s) are in a Pool.
thanks for your reply. the temporary vulnerability when writing to cache without priority is acceptable, i will only delete source files after files are visibibly transferred to the array
about TRIM, i check the discs before buying, and they explicitly state that they support TRIM (this is a garbage collection instruction if i understand correctly)
or is it unRAID that doesnt support TRIM? if it does not, i suppose it will be brought in the future. unRAID seems to be a healthy enterprise and will be aware of this TRIM situation
SSD are too tasty to pass up ))
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hi there
im happy to report i have purchased a pro License, im quit happy with my unRAID server, interface, everything basically.
i have now 10TB running as parity, a bunch of HD & SSD as data disks (9 actually)
my use is very basic at the moment: serve audio & video files.
question is easy i hope:
1. would adding a SSD as cache improve write performance? if yes, what size would be ideal (array is now about 8.5 TB out of 13 TB available)
2. when i would write 2 files to cache, for example, are those writes then immediately secured by parity? if yes, then those writes would be as slow as writes to the array?
in long term i will have the whole array in SSD, but at the moment have 4 HDD in there
thank you in advance
BR
S
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On 11/9/2020 at 2:13 PM, steven_76 said:
hi,
complete noob here to unRAID. have a first test (trial) server online now (lost half a day with the usb settings in the BIOS).
anyway, i have a Gigabyte 970A-DS3P with 6 SATA ports and a RocketRAID 640L controller in a PCIe slot.
the RR controller is listed somewhere in the interface of unRAID, but the disks connected to it do not show up for assignmenti have been reading a bit today, and ill try to turn off the virtualization support in the BIOS tonight when i get home, and if that changes nothing ill try the script
and report back here on how it goes.
i also have a LSI MegaRAID SAS 9260-8i coming in this week, and ill report on that as well. other noobs could benefit from my experience maybe ))
br
s
everything worked, just as the author of the script explained. a very large thank you to this user !
best regards
s.
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hi,
complete noob here to unRAID. have a first test (trial) server online now (lost half a day with the usb settings in the BIOS).
anyway, i have a Gigabyte 970A-DS3P with 6 SATA ports and a RocketRAID 640L controller in a PCIe slot.
the RR controller is listed somewhere in the interface of unRAID, but the disks connected to it do not show up for assignmenti have been reading a bit today, and ill try to turn off the virtualization support in the BIOS tonight when i get home, and if that changes nothing ill try the script
and report back here on how it goes.
i also have a LSI MegaRAID SAS 9260-8i coming in this week, and ill report on that as well. other noobs could benefit from my experience maybe ))
br
s
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hi jorgen, ok thanks, that takes care of the cache drive question. thanks for the headsup on the NIC, i wasnt aware on that and certainly keep it in mind. thanks a lot
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so guys, this setup is going to be workable right?
1. a box in living room, with i5 + 32gb ram + 4gb vid card with kodi on it, which is set to look for data via SMB network share on the unraid server
2. unraid server with AMD FX6300 + 32gb ram, a parity disc (10tb) and an array of 4x 5tb 2.5" barracuda discs (on which to add more 3.5" discs afterwards)
do i need a (ssd) disc to function as cache? i would want the kodi client to function as fluid as possible (saw a lot of topics about kodi hanging and stalling)
which PCIe SATA controller card do you guys recommend? which minimum power for the PSU
thanks again guys, sorry bout all the questions
br
s
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Just now, trurl said:
Cache is often used for dockers and VMs for performance.
Unraid must format any disk it will use in the array. You may be able to mount the disk with Unassigned Devices plugin and copy its data to the array. What filesystem is it?
i ought to be NTFS i suppose, its from a windows 10 system
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hi there
story: i have a HTPC upstairs in living room, with a small ssd for OS and a 8 TB disc for content. that disc is now full and i needed to start thinking about extending. started thinking about a NAS, and so learnt about existence of unRAID - which is my preference over the freeNAS because it can add disks to an array on the fly.
ok, so i have this: https://www.gigabyte.com/Motherboard/GA-970A-DS3P-rev-2x/sp#sp lying around. i also have the 8TB disc (which is full), another 3TB disc in another station. as case i have leftover: https://www.bhphotovideo.com/c/product/1160574-REG/corsair_cc_9011048_ww_carbide_series_air_540.html - which has room for 4 small 2.5" discs, 2 x 3.5" discs and 2 x 5.25 bays which could fit 3 more 3.5" discs (if i can find such thingy that converts the bays in 3.5 cage)
now, i will use this SAN only as a storage for movies, series, music and pictures. i will stream from the NAS to my kodi HTPC.
i was thinking of getting 4 x 5TB in 2.5" discs ( https://azerty.nl/product/seagate/948915/barracuda-st5000lm000-5tb-vaste-schijf-intern )
and getting a 16 TB disc ( https://azerty.nl/product/toshiba/4017357/mg08-series-mg08aca16te-vaste-schijf-16-tb ) for the parity - as i had (correct?) understood that that parity disc needs to be the biggest possible and cant be upgraded afterwards.
do i need a disc for caching? is it necessary for my purposes?
is there a way to get the 8 TB disc in the array, with the data intact? (i suppose not, but ask anyway)
i would like to get an extra SATA controller - which one do you guys advise?
any other things i have overlooked? tips or advice?
i thought it would be best to ask questions here before i started buying stuff
thanks in advance for all reactions
br
s.
load balancing of the disks question
in General Support
Posted
could you tell me which option i would need to check and how it would need to be set (in order to have a "best practice" config) ?
much obliged
br
s