greybeard
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Posts posted by greybeard
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In 4.6 it was necessary to put all drives connected to a SASLP-MV8 controller (and maybe others) in one spinup group to prevent movie freezes when a drive connected to the controller would spin down. Is there anything about 5 that changes that? When I first installed 5 (not sure what rc it was) spinup groups defaulted to off.
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Like most I voted for 16b.
However I think there should be consideration given to staying with the reiserfs patch, even for 5.0 final. The patch has been very well tested. Changing to the official fix would require rigorous testing and, who knows, might not even work. So for 5.0 I would suggest staying with what has been tested and works.
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The Upgrade Instrucitons for release 5.0-rc8a and older do not say anything about copying the syslinux.cfg file to the flash drive. Am I correct to asusme that is only because the instrucitons have not been updated and I really do need to copy it?
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Keep in mind that the code is for $15 off an order not a per drive discount.
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Using version: 5.0-rc6-r8168-test with C2SEE I was getting inconsistent response times when clicking on things in the web interface. Worked fine for a few minutes then got a 15, 20 second or longer wait before a response. I finally got tired of all the problems with the built in nic and decided to follow the advise so often given in these forums so I purchase this.
http://www.ebay.com/itm/Intel-PWLA8391GT-1000Mbps-Desktop-PCI-Network-Card-NIC-/150592466899
Installed it and now my web page response is 100% consistent. After a few days of testing I have not once had any delay in web page displays. I suppose I will need to add one to my two primary systems before converting them to 5.
Only mistake I made was not moving the on board jumper to disable the built in nic. Apparently unRAID uses the first nic it sees so it kept using the realtek instead of intel. After cracking open the case and moving the jumper all was good. On the C2SEE it does take moving a mobo jumper, can't disable it from the BIOS settings.
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There have been quite a few posts over in the 5 beta threads stating there is a real need for NFS and AFP. Maybe I can understand AFP for Apple users but I am more puzzled why there is such an urgent need for NFS. I have been running 4.7 with 20x2TB drives using SMB for a long time. Never have a problem finding the shares from my Windows machines, get 100m read speads, typically 35-40 write (no cache drive). So why do I need NFS?
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I used a Logitech Cordless MediaBoard Pro for PS3 in an HTPC I gave to one of my kids for Christmas. They tell me it is working great, when they need to use a keyboard. Two things.
1. It does not come with a bluetooth receive. You need to get one somewhere else. Extra $5.
2. Can't use it to get into the BIOS and make changes. Need to hook up a wired keyboard to do that.
Also gave them a Media Center IR remote that they use most of the time. Media Center is started at boot up, and they rarely leave it. TMT5 for Blu-ray and MyMovies for catalog/menu.
I know it says it is for a PS3 but works great with PC. Lot's of feedback at the egg, most seem to be using with a PC. It is a full size KB with track pad. All the keyboards I researched that have a joy stick or track ball got considerable worse feedback.
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So at this time, there appears to be some bugs in the parity drive rebuild and/or parity check while file/folder read/writes are occurring simultaneously as I have encountered no issues otherwise.
Do you have any 2 TB Samsung F4 HD204UI drives in your array? If so, has the firmware been updated? Could be completely unrelated but is something to check.
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Sorry for bumping an old thread.
Is this card still recommended?
Not sure I would say that it is recommended. From what I have read it is either compatible with your main board and works fine or it's not. There is no inbetween. The evidence seems to suggest that if there is an JMB controller on the main borad you chances of this card working drops dramatically. So, unless you can find a post that confirms it works with your main board you spend your $9 (price went up) and take your chances. I have several of them working just fine in both unRAID and Windows systems.
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More goodness. I have a new build with three Hitachi 3TB cool spin drives. One on a mobo port, one on an MV8 and one a JMB card. Newly configured flash drive. First started testing with beta 9 and had some of the problems report in these threads. Just updated to beta 12 and everything I have tried (not that I tried a lot) is working perfectly. Web interface is snappy (wasn't in early tests) and a parity check started running at 117MB per second. Of course that will drop as it gets further into the drive. So, for now, things are looking really good. I will do some more experimenting and post the results.
15 bay box with
C2SEE - E3400 - Kingston KVR1333D3N9K2/4G DDR3-1333
SASLP-MV8 and JMB PCI Express Hong Kong special.
CORSAIR CMPSU-750TX
I really hope that this means it is getting close to the end of the beta cycle. A stable 5.0 official release would be a great thing. I too have to thank Tom for all his hard work and everyone that has been testing these betas.
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Looks like Supermicro is updating the AOC-SASLP-MV8. I don't see it listed yet at the sites I normally buy from so I don't know what it is going to cost.
Key Features
• 8-channel SAS/SATA adapter with 600MB/s per channel
• PCI-E x8 interface
• JBOD mode only. No RAID support
• Dimension: 6.6" (length) x 2.7" (width)
More details here:
http://www.supermicro.com/products/accessories/addon/AOC-SAS2LP-MV8.cfm
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I have been experiencing this behavior for a long time, have read other posts describing similar behavior and finally learned enough to have an idea what might be causing it.
First, I am assuming unRAID is using ReiserFS v3. I have not learned enough to know how to check that but have read it is v3.6. If it is not v3 then the rest of what I am going to write is kind of useless.
Ok, the problem: When a disk is getting close to full, somewhere above 90%, copying a file to it will often cause an initial pause of 20 seconds or so during which time the light on the data drive flashes continously. Only the data data drive, not the parity drive. Some times Windows will get tired of waiting and time out, resulting in an error. After the initial pause, the copy works fine, unless... There is other activity on the system, for example a preclear. In which case a block of data will be copied after the pause (parity drive light flashes for the actual data copy) followed by another pause, flashing data drive light, of the same duration as the first one. This repeats and repeats until the file is finally copied. A 500m (yes meg) file has taken an hour to copy in this situation.
My theory: Based on research and observation I have come to the conclusing that what could very likely be happening is free space bitmap searching. When nothing else is running the bitmap is cached so there is only one pause, however if there is other activity, the cache gets purged resulting in another read of all the bitmaps spread across the partition.
My question: Again being a UNIX newb I am wondering if someone can tell me if the patch described by this post is part of the unRAID distribution? It seems to describe exactly what I am experiencing although I never checked the CPU utilization (that newb thing again). Thanks for any feedback.
Jerry
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Interresting subject. I signed up for a 2G account to checkout SpiderOak and kind of like it. However I would suggest that security on the share funciton is not nearly as good as it could be. I posted the following to the SpiderOak features request forum and am repeating it here, instead of providing a link, because their forums don't seem to allow public access. I think you have to have a SpiderOak account just to view. Here is what I wrote.
I setup an experimental share to get experience with how it works. In the case where I want a share to be truly public, giving out the URL is a nice solution. However if I want to keep a share semi private, where only friends a family can see it, there is a risk. I can tell friends what the Share ID and Room Key is along with instructions to go to spideroak.com and use the share login but the result is the same URL as if I had sent them a URL. Now if all my friends and family were computer savvy folks and understood that the URL need to be protected to keep unwanted people out, that might not be a problem. My fear is that after logging in the URL will remain in browser history or be unwittingly published in a public forum thus exposing my data to the whole world.
It would be a great security feature if there were some way for me to configure a higher security share that always forced family and friends to use the Share Login process. I would expect that clicking on a saved or historical link to the share would display a Share Login screen. I completely understand why you would not want all shares to work this way but it would be a really nice option.
I also realize that my friends might give or post the Share ID and Room Key other people but that would be deliberate vs. accidentally disclosing the URL. And giving out the Share ID and Room Key would not expose the share content to indexing by search engines. The most secure option would be to allow a share to only be accessible to a specific list of other registered SpiderOak customers. Combine that with a feature to let those customers automatically download updates (kind of like a read only one way sync) to their system and SpiderOak would be an even better product. An option to restrict share access only to other customers would, in my mind, also be an acceptable alternative to always forcing a Share Login as I described above and could be a way to get more people to signup.
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I order 3, never came, over 32 days, seller returned payment.
I had a similar problem. 30+ days, no cards. I finally found them sitting at the post office waiting for us to pick them up. The USPS claimed to have tried to deliver them but did not leave anything telling us that. For four cards a signature was required so they wouldn't just leave them in the mail box. This sort of thing happens all too oftern with our local post office. It is incredibly anoying. The seller did offer to refund before I found them but I told them to wait until I did some more checking.
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Hope this helps. If you can find a flash chip, you have better eyes than I. Also scanned at 1600 dpi but the file is 21M. The back has a few more capacitors and resistors but that is it. From the 1600 dpi scan I was able to confirm it is in fact a JMB362 chip. I believe the ROM is built into the JMB362.
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At the risk of repeating myself:
From the specs "Supports up to 64K Byte external Flash for BIOS expansion"
Not on this card. Don't believe there is any way to flash this specific implementation.
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Hi greybeard,
I just wanted to confirm that you have the Supermicro C2SEE motherboard running with an Intel Dual Core Celeron E3400 processor.
Supermicro told me the C2SEE would be compatible with the E3400 before I bought the CPU but now they are telling me that it is not compatible: http://lime-technology.com/forum/index.php?topic=11542.msg110114#msg110114
I am unable to get the POST beeps on the motherboard or video out. If you are able to check out my thread and help, that would be greatly appreciated.
Thanks!
I have the $19 Newegg special C2SEE. Here is a clip from log showing the CPU.
Mar 7 10:33:41 MiniClops kernel: CPU1: Intel® Celeron® CPU E3400 @ 2.60GHz stepping 0a (System)Mar 7 10:33:41 MiniClops kernel: checking TSC synchronization [CPU#0 -> CPU#1]: passed.Mar 7 10:33:41 MiniClops kernel: Brought up 2 CPUsMar 7 10:33:41 MiniClops kernel: Total of 2 processors activated (10374.33 BogoMIPS). (System)
Hope that helps.
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To go back to the original post, it's an interesting solution but I always consider it somewhat of a band-aid. There are no guarantees the solution will last and the connections will likely be an issue again the next time anything is changed, such as when just swapping a disk. The connectors are all gold-plated and they should work reliably as is.
Agreed. Should but for some reason didn't. It was like running memory at .05 volts too low. Sometimes it worked for hours and sometimes had problems immediatly and the symptoms would change. To be on the safe side I will reapply Stabilant to the drive edge connectors when I swap drives. The 5ml I have (thined out to 20+ml) will last many years and only takes a few seconds to brush on, that is if I can find it a year from now. It was much cheaper than replacing the M35Ts which is where the problem seemed to be. Only time will tell, few things in life are guaranteed. When I think about what actually goes on inside computers I am amazed that they ever work.
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Huh, very interesting. How did you run 15 simultaneous preclears? I thought the limit was 6.
Each preclear ran in it's own "screen" session. I had never read there was a limit but was wondering if it was going to work as I was starting them. Apparently it does work.
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Recently I finished building my second unRAID server.
Centurion 590
Corsair 750TX
Supermicro M35T bays
C2SEE, E3400, KVR1333D3N9K2/4G
SASLP-MV8 & JMB362
Variety of 1.5TB and 1TB drives, 15 total.
When I first put this together and started testing I was having a variety of drive problems. Reported errors, slow transfers, drive not detected, etc. Isolating the source to a single component (cable, drive, bay backplane, power supply) didn't work. The problems would move from one drive to another, reseating a drive in the drive bay would change the symptoms or make them go away. Moving a drive to another bay would start out working only to see a slowdown popup later. In one test I created a 2 drive array and did the initial parity sync. Then started a parity verify, the verify speed slowed all the way down to 1.4, without ever logging any indication of an error.
After a while I thought maybe I did not have good connections somewhere between the drives and mobo. Most likely where the drive plugged into the M35T back plane. I remembering having read an article in Byte magazine about something that helps makes electrical connections more reliable so went searching on the net. Quickly found something called Stabilant 22 and immediatly recognized the name. You apply it to edge connectors before pluggin in cards, cables or drives and it claims to make the connection much better. Maybe it sounds like snake oil but I found a lot of articles and postings saying it works.
So I orderd a 5ml kit (not cheap $38 + shipping) and bottle of Isopropyl alcohol (another $8 with shipping) to thin it for applicaiton. When it arrived I took everything appart and applied to the card edge connectors, cable connection points and hard drive edge connectors as I reassembled the system. Did not touch the memory. It only takes a tiny amount (a fraction of a drop) for each connection so 5ml goes a long way. I don't think I even used 5% (about $2 worth) of it.
Since I started the system back up I have not had one single error or slow down. I have run 15, 2 pass preclears, all at the same time, created a 15 drive array (9 drives had data, 6 new drives), did a parity calc and verify and ran CRC checks against one of the data drives. All went perfect. While this solved my problem the standad caution always applies. YMMV.
Over the years I have built 30+ systems and until now have not had to resort to this. I have learned that most computer problems are bad connections. Most of the time just reseating fixes the problem but not in this case.
Jerry
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thought you needed your parity drive to be as big as your largest drive? or was that a typo.
Doh!! You are absolutely correct. Ultimately the 1.5TB will be the parity for an array of 1.5TB and 1TB drives. The 2TB in the box now will be moved to another box of all 2TBs. Guess I will need to use one of the 2TBs as parity for this test.
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Just finished testing using preclear.
C2SEE, E3400, KVR1333D3N9K2/4G, CMPSU-750TX, Samsung 1.5TB HD154UI
Test 1: Sil3132 RAID BIOS in slot 7 connected to Samsug 1.5 with 14 additional preclers running. 2 passes on all preclears.
Results: Took 80 hours for all preclears to finish. The Samsun connected to the Sil reported that the preclear did "NOT" finish successfully and listed two skip/count messages.
Test 2: JMB362 in slot 6 (primary video slot) connected to same Samsung 1.5 drive as Sil in test 1.
Results: 21:24:42 Successful
Test 3: Sil3132 RAID BIOS in slot 7 same 1.5 drive.
Results: 21:45:34 "NOT" successful, one sikip/count message. Way different location than Test 1.
Test 4: JMB362 in slot 7 same 1.5 drive.
Results: 21:24:13 Successful
Currently working on testing a 13 drive (5 1TB, 7 2TB, 1.5TB parity) array with the parity drive connected to the JBM362.
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Are these still going strong for you?
I just ordered two from eBay (which are going to be a week delayed due to Chinese New Year), and was hoping that my $16 has not been wasted
I can only add 3 more drives in addition to the 7 mobo SATA ports, due to space issues, so this was a decent option given that I've got 2 PCI-E ports. If I find myself in the market for a humongous case any time soon I can always buy something fancier, it's not like the $16 has broken the bank.
The one I have is working great but I have not had it that long. Ran a full preclear of 1.5TB drive with no issues at all. Currently running the exact same preclear with the drive connected to a Sil3132. Seems to be going about the same. I have not tested with two drives connected to one card. I am kind of thinking I will connect my parity drive to this with data drives connected to a MV8 and mobo ports. Will be testing a lot more in the next few days with the goal of going live this weekend. Going to split a 20 drive server into 10-10 so all my 1 & 1.5TB drives will be in one server and 2TB in the other. Then I will add some more 1 & 2TB drives to the respective servers. In the end I will wind up with two 15 drive servers and spare capicity.
Waiting for shipping is kind of a pita but they do have a lot of good feedback. I will probably buy a few spares to put on the shelf.
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From the specs "Supports up to 64K Byte external Flash for BIOS expansion"
Not on this card. Don't believe there is any way to flash this specific implementation.
Array Reconfiguration Plan
in General Support
Posted
I have a 19 dirve 6.6.6 array.
1 x 8 TB Parity
18 x 2 TB MBR unalligned ReiserFS data drives.
1 empty drive bay.
I also have 4 x new 8 TB drives so what I want to get to is
2 x 8 TB Parity
3 x 8 TB GPT alligned XFS data drives.
8 x 2 TB XFS data drives. Don't think it makes any difference if these are GPT or MBR.
Pretty sure I can not replace a 2 TB ReiserFS unalligned data drive with an 8 TB XFS allinged drive just by doing a disk swap and rebuild. So here is my idea for how to get converted.
Will probably take a month or so to complete all steps but when done I should be able to replce any of the 11, 2 TB drives still in the array with an 8 TB drive and get an XFS alligned partion after rebuild.
Thoughts? Pitfalls? Other ideas? Thanks for taking a look.