pk2

Dear @the Goat, don't give up :) I sent another kind request a moment ago at : [email protected] Let's ask them together :) Kind regards, Piotr.

Dear @the Goat thank you very much for your message! I've been asking and re-asking by e-mail the new Linux Driver update for HighPoint r750, exactly for the same 5.10 Kernel, with no success for the moment... Let's do it together, with the hope they help us...? Kind regards, Piotr.

Dear @Hoopster - thank you very much for the Great Portion of unRAID Knowledge I'd like to share the good news with you, @uldise, @Vr2Io and other unRAID Friends: * My two HighPoint Rockets R750 arrived * The HighPoint Suport answered my e-mail however I needed to re-ask the question about their Linux Driver Update to Kernel 5.10. Instead, I got to know that they will release a new Controller with a huge numbers of ports - 48 !!! - i.e.: "Rocket 860-48-port SAS/SATA HBA" I don't know how about you but I like that information It might happen that I could participate to a Zoom Presentation of it (not confirmed for the moment) That's what they wrote by e-mail. Thank you again and I must say I'm honored that I can talk to you and strongly impressed when I read professional discussions, as for example about a new Feature Request related to the Double Parity Error which can be propagated to good drives for example. I also got to know that to keep HDDs in good health it's recommended to pass with the head of drive over each sector of the drive from time to time as the corruption seems to occur there where the drive head rarely arrives so I plan to execute smartctl -t long /dev/sdX periodically. Finally, it's a shame... I didn't know it but I start to understand the Great Concept and the Uniqueness of unRAID!!! Thank you again! Back to the real world... Could I ask another question, please? I bought 2 x DL380 Caddy for 2.5" drive and would like to ask you, what is the missing / complementary part for it? I suppose that there has to be a kind of a Bay with many holes where I can insert this Caddy (?) Could you give me some links for it or the Product Name, please? Otherwise, I'll have to invent something manually as I'm afraid that the missing part can be very expensive... I would like to look for in Asia first but I don't know what is the name of it... Thank you once again for your Great Help and Kind Regards, Piotr. P.S. An off-topic but an important one: My Mother was ill (COVID-19) and a Doctor who uses unofficially an old medicine "Viregyt-K" (Amantadine Hydrochloride) against coronavirus (according to the Method invented by Dr Włodzimierz Bodnar) helped my Mother and she's well now ( Thank you God!!! ) https://przychodnia-przemysl.pl/how-to-treat-covid-19-in-48-hours-scheme/ maybe it could help you or People you love

Dear @Hoopster, @uldise, @Vr2Io and other unRAID Friends! 1. My 2 HighPoint Rocket R750 40-ports Controllers are ordered 2. I asked HighPoint to update their Linux Driver to support 5.10 Kernel. 3. Thank you one more time for your Great Patience, Advice and Help! It seems to me that I start to understand the context - unRAID is not a program/module or something like that but the whole Operating System, developed/lead by Lime Tech (similar as Cannonical and Ubuntu?), I suppose it can be booted from a USB stick (?) Before I thought that in each Linux/UNIX Distro we can have mdadm and unRAID as Components to create Disk Arrays - dummy me... On the other hand, it's a bit strange for me that unRAID OS seems to be somehow hidden, you know. You're not present at distrowatch.com and to be honest I only got to know that unRAID exists thanks the fact that I wanted to build a home "quasi-server" with many HDDs and while looking for Controllers I noticed that there are two types of them "RAID" and "unRAID". That's what I wanted to share with you that in the world outside your Great unRAID OS is somehow hiddent/invisible... Thank you once again and Kind Regards, Piotr.

Dear @uldise thank you very much for the clarification That's clear that for the moment I only know a bit of the Theory but I have no practice... I want to study unRAID vs. mdadm because before I thought they work together somehow and now I start to understand they are two separate Solutions - correct? So I try to study and compare them and probably I create a separate thread unless you or Someone else would like to explain it in simple words "what are the main differences between unRAID and mdadm" Dear @Hoopster could I ask you one more thing, please? I placed a preliminary order for 2 x R750 and I still have one or two days to pay + additional 14 days for testing when I can return them and get refund. This time I'd like to use to "pester the manufacturer of the controller to update their drivers". Could you advise me how to do it in the best way, please? Should I ask them to update the driver to support exactly the 5.10 kernel which is planned for Debian 10 or maybe it's better to ask them the most up to date one? Which Linux Kernel should I mention, based on your experience? What else I should ask HighPoint Support that could help our Community to include R750 into unRAID 6.9? Thank you in advance for your FeedBack and Kind Regards, Piotr

Dear @Vr2Io thank you very much for your post and you helped me to take the decision I understood that I really like the fact that these controllers have so many ports which simplifies my crazy project I'll ask HighPoint to update the Linux Driver and hope they help - I read a positive review 5 minutes ago saying that they update their drivers "in 3 days" when you ask them... Would be great if it's true Thank you and Kind Regards, Piotr

Dear @Hoopster, Dear @uldise and Dear @Vr2Io thank you again for your Great Help! I'd like to summarize as I need to take decision "to buy or not to buy" the 2 x HighPoint Rocket R750 Could you, please check if I correctly understood: 1. If I use HighPoint R750 at Debian 10, kernel 4.19 and unRAID 6.8 then they should work correctly (?) 2. If I use the above Controller at Debian 10, kernel 5.10 i must use unRAID 6.9 and R750 will not work (?) 3. It is impossiblie to use unRAID 6.8 as it is based on kernel up to 4.19 (?) 4. There's a chance that HighPoint update their R750's Linux Driver to work with kernels > 4.19 (?) 5. There's a chance to find an Alternative Solution at unRAID level after i create a Bug Ticket (?) Thank you in advance and Kind Regards, Piotr

Thank you, Dear @Hoopster, and firt of all I'd like to say that I understand that if I upgrage from unRAID 6.8.x to 6.9.x the two HighPoint Rockets R750 will not be supported - that's is and was clear to me Then of coure I can create a Bug Report for it, according to the Procedure to get an alternative solution I will also ask HighPoint even if I'm not sure if it makes sense, taking in consideration what I read here about the poor HighPoint Support... I also understand/feel that LSI seems to be problem less. By the way, can you mention a 24-port good Controller at a low price, please? However, I'd like to re-ask my question about the impact of the R750 removal from unRAID 6.9 When I install Debian 11 which seems to have 5.10 kernel, what happens If I want to use my 2 HighPoint Rocket R750 there? Will it be possible that I install unRAID 6.8 and voila or not? If not, then what should I do to solve/bypass these limitations/obstacles? Thank you, Piotr.

Thank you Dear @uldise and @Vr2Io it seems to me that I said something stupid... so again I repeat that for the moment I feel to be a complete unRAID dummy... Anyway, let me explain and thank you again for your Patience to help me clarify my ideas and sorry if I confused something... as I said I'm learning so I know theory a bit for the moment and I understand I may be completely wrong... : Tomorrow I want to buy 2x HighPoint R750 to attach 80 HDDs at Debian, each drive having 1 partition to fill 100% of the drive space. Thanks that I'll have: /dev/sda1, /dev/sdb1, /dev/sdc1, /dev/sdd1, /dev/sde1, /dev/sdf1, /dev/sdg1, /dev/sdh1, /dev/sdi1, /dev/sdj1, /dev/sdk1, /dev/sdl1, /dev/sdm1, /dev/sdn1, /dev/sdo1, /dev/sdp1, /dev/sdq1, /dev/sdr1, /dev/sds1, /dev/sdt1, /dev/sdu1, /dev/sdv1, /dev/sdw1, /dev/sdx1, /dev/sdy1, /dev/sdz1, [...] , and so on, and so on till my OS assigns /dev/something to all the 80 HDDs. Then I plan to build a RAID6 array composed of the first 32 drives, by doing something like this: # mdadm --create /dev/md0 --level=6 --raid-devices=32 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 [...] and so on till the 32nd drive Then I'd like to create the second leg, i.e: # mdadm --create /dev/md1 --level=6 --raid-devices=32 /dev/something1 /dev/somethingelse1 [...] and so on till the 32nd drive so in total I have a 32xHDD RAID6 1st leg : /dev/md0 and another 32xHDD RAID6 - 2nd leg /dev/md1 now I want to use these 2 legs to create a RAID60 array, i.e: # mdadm --create /dev/md2 --level=0 --raid-devices=2 /dev/md0 /dev/md1. As a required result I suppose to obtain a RAID60 array composed of 64 HDDs, with Double Parity and the real drive space = 2 x (32-2) x HDD size ? Does that make sense or did I confuse something? Thanks that I can learn from you and sorry if I say stupid things for the moment... If this what I said is wrong, then could you please explain how you do it in unRAID to create one big drive space using 64 HDDs with double parity? Thank you, Piotr

Thank you, Dear @uldise and yes, the idea that I have is to build an Array with as many drives as possible, just to experiment with different RAIDxyz combinations, such as RAID5/50, 6/60, 100 and so on, trying always to use the maximum of 32 HDDs per leg and as many legs as possible To start I plan to use at least 1 x 32 x 320GB 2.5" or (3-4) x 32 if I get cheaper HDDs even a bit smaller and manage to implement the required number of Controllers + Expanders . That's why I'm trying to catch one or two R750, to easily attach a bigger number of such drives.

Hello Dear Friends - I'm Piotr (Peter) from Poland - Nice to meet you! This is my first post here. I'm still reading and reading but finally I started to buy elements for my first Array and... I'm about to buy the HBA Controller: HighPoint Rocket R750 40-ports I initially understood that it works with unRAID and I was happy to get a Controller with so many ports but now I noticed/found in the Forum that R750 will not be supported in unRAID v.6.9... correct? I generally use Debian 10 and plan to switch to Debian 11 as it is released. I'd like to understand with your help - should I abandon the idea and not buy this Controller? I don't understand the real impact of the above information and on the other hand I need a prompt help/advice as I'm about to buy and pay for the R750 in the next few days (preliminary order was done so I don't have to finalize the purchase). I'm trying to figure out if I can install Debian 11 + unRAID v.6.8 and everything is fine or maybe it causes problems - what sort, if so? Could you explain it for me in simple words, please, as I'm an unRAID dummy for the moment... I'm trying to collect all the pieces of the puzzle and guess a bit, what decision I should take... I'm confused... I suppose it might be related to the information that the driver has Support up to Linux Kernel v4.9? https://highpoint-tech.com/USA_new/series_r750-Download.htm Thank you in advance for your Advice and Patience and Kind Regards, Piotr.