Blade1001

Mainly because for heat generation and drive life I guess.

I have a Sonos system which plays music tracks kept on my UnRaid server. Its not a major problem, more of an inconvenience, but when the disc with the music share on it spins down (after a period of inactivity), it takes between 30 seconds to 1 minute for the disc to spin back up and connect to the Sonos system again. I was therefore wondering if this delay could be eliminated by replacing the drive with an SSD, which would of course never need to spin down. Has anyone tried this, and are SSD's compatible with UnRaid 4.7? Thanks, - Gareth

Bugger! That's a shame. I guess I'll have to get a separate USB capable NAS drive then, and just have it back up to my UnRaid server.

Hi all, I have done a couple of searches of the forum but can't find an answer to this question. Is there any way to connect an UnRaid server via USB, so that it acts like a USB connected storage device. Basically I want to stream 24/192 music files to a streamer than can only take the format from a USB connected drive. Thanks in advance, - Gareth

Ok, will give that a go too - do I need to edit the scripts at all to go into S1 sleep (my Linux knowledge is patchy at best)?

I am using S3; my BIOS only has options for S1 and/or S3. I can try pulling the Supermicro card I suppose, though I was hoping to diagnose the problem without. I will have a go!

Anyone??

Hi guys, I'm looking for a little help from you experienced unRAID people once again please. I am setting up my unRAID server to go into sleep mode after disk spin down, and then Wake On Lan by sending a 'magic packet'. I have followed the Wiki guide to the letter, and have also read through the entire 24 pages of the main topic on this subject. I can get the server to go into automatic sleep mode without a problem, timed after all disks have spun down. I can also send the server the magic packet by using the WOLcmd program via a batch file (I can even send it one wirelessly via my iPhone). The server starts to wake up, and all disks spin up, but then the 'wake' process seems to lock up, and all the hard drive activity lights (on the Icydock hotswap backpane caddys that I have in my server) on those drives connected to my Supermicro SASLP-MV8 controller just flash orange and green (green is for when a drive is powered, orange is when it is spinning). I can't seem to get past this point. I have a monitor attached, but this does not recieve any further video signal from the server so it displays nothing, and the attached keyboard does not have any effect. The only thing I can do to sort it is a hard reboot. I'm assuming this might be an issue with the reboot of the Supermicro card, but have no idea how to trouble shoot it. I don't have a syslog to attach because I have to do a hard reboot (I am right in thinking that this clears out the syslog?). If I need to list any other system details to aid any advice, please let me know. unRAID version is 4.7beta (haven't upgraded it yet) and apro licence. ANy ideas you might have would be greatly appreciated?

Did you also set the mtu on your PC? No, I didn't. Only on the unRAId server. It is really odd that this does anything for several reasons. The IP standard requires that all hosts on a subnet have a common MTU. But that is not the real issue. Data transfer is from your PC which should default to 1500 bytes. The server is sending small acknowledgement packets which should be 576 bytes in size. The PC is still sending the data in 1500 byte packets. The server is sending acknowledgements of 576 bytes. So the 6000 byte MTU is never being used. To an unRaid array with parity protectionin place but NOT using a cache drive?

Sorry if this has been answered elsewhere in this thread and I have missed it, but are you saying with this tweak you get 75-80MB/s when writing directly (i.e. not using a cache drive) to the array WITH parity protection in place? If not, can you test this, as this is surely the acid test of an improvement in write speeds to an unRaid array?

This could have been the problem with mine too as my syslog got to about 1.7GB I think

You'll have to excuse my newbie ignorance, but what is a tmpfs?

Right, so what are you thinking? That the systems trying to make so many writes to the log file that it causes a system crash? My system only has 2GB but I thought the UnRAID system wasn't very demanding in terms of hardware requirements?

Right, just a bit of an update on this issue: I tried the drive in a different working drive slot, and still the same crash, so I have replaced the power supply for a shiny new Corsair AX850 which provides 70A on a single rail as recommended above. I know this is a little bit overkill, but I wanted to cover all future possibilities in one hit. I re-ran the pre-clear script and still no joy, pre-clear crashed again part way through the initial read. I have even tried running pre-clear by skipping the initial read, it gets all the way through the write but crashes on the post-read. I also checked the slot the drive was in by pre-clearing a different old, known working drive in it, and that pre-cleared without a problem!?? Anyway, I have now sent the drive back to Scan for a replacement. Does anyone have any suggestion of what might have been wrong with this drive? Why is the Smart report not showing any errors?

@ Prostuff1 - Thanks for that, sso for absolute future proofing, should I step up to the 850W version (70A over a single rail) for the extra £15 it would cost - since that would cover the option of 22 x 7200rpm drives (3amp x 22 = 66amp)? @ dgaschk - I'm not sure, and I'm not sure quite how to find out?? It is a BFG nVidia 680i SLI board out of an old gaming PC. I'm also running it with a graphics card (since it has no on board graphics) so I can access the console - this requires a molex connector to be plugged into the MB to supplement the dedicated graphics card power cable, so perhaps this uses the 12v as well? @ Joe. L - Based on these other overheads, how big a PSU should I be going for? Is the HX850 even enough??

Checked my PSU and it is infact a 600W version (the 1000W unit is in another gaming rig I think). The PSU in my Unraid server is in fact an older 600W Enermax Noisetaker. It does indeed have seperate 12v rails, each only providing 18A!!! I'm guessing I need a new PSU??!! How big should I go if I want to cover future expansion up to the maximum 22 drive array? How many amps should I allow per 'green' drive, and how much for a full fat 7200rpm drive? Looking through the forum, the Corsair models seem to be a favourite, would a 750W Professional (HX750) be sufficient - giving 62A on a single 12v rail? Thanks in advance...

Hi Joe, Thanks for your reply. I will look into this. The drives are all green drives I think, with the exception of a couple of older 250Gb drives. Is there any way I can utilise one of the other rails then to power one of the Icy Docks? Or do I need to look at getting a new power supply? Looking at the syslog, do you think the problem is most likely to be a power one?

Hi Rajahal, Preclear is running from the system console. I will try the drive in a different bay. I am using IcyDock hotswap backplane bay, connected up to a 3Ware AOC-SASLP-MV8 card via breakout cables. Other drives are working fine in the same Icydock 'box', connected by the same cable to the same card. Assuming the drive works in one of the other bays, would the most likely cause be a faulty power cable? (I am using an Enermax 1000W power supply)

Hi guys, I have run into a bit of an issue trying to pre-clear a new drive. The drive in question is a WD EARS. When I run the the pre-clear command as follows: preclear_disk.sh -A -c6 /dev/sdg The pre-read starts, but crashes after a varying period of time (once after 10 minutes, a second time after 2 1/2 hours). I can't access the array after the pre-clear has crashed, so have to run the 'shut-down' command to reboot. I have run the Smart report, and can't see any issues with the drive. (Copy attached unless I'm missing something). I also attach a Syslog, captured after the pre-clear had crashed, which seems to show lots of errors relating to the drive in question (sdg) - but unfortunately its all far beyond my understanding! Any help anyone can give would be greatly appreciated. smart.txt 2011-03-23_Syslog.zip

Not to worry, I think I'm alright. I have reassigned the disks, and the option to reformat did not come up. I can now access the shares again (after I recreated them) and all my data is there.

I've messed up and might have been a bit of an idiot! I have just tried to add three new blank drives to my array (via the web GUI), as they have just finished pre-clearing. I stopped the array (of three existing disks - two data + one parity), and went to the 'device' page to add the disks. However, when I selected the first drive from the drop-down list, the web GUI locked up so I had to crash out of the browser. However, I could no longer get back in to the web GUI. So I went to the terminal on the unRAID server, and ran: shutddown -r -t now This normally shuts down the server and restarts it, however it locked up on reboot, so I had to hard power it down. Now this seems to change the USB stick, and prevents it from being a bootable device (not sure why). So I formatted the USB stick, reinstalled the unRAID software, added the Pro Licence key, reinserted into the server, and restarted everything. Everything has booted up properly, and I can now access the web GUI. Unfortunately though, it is now showing that there are no disks in the array (i.e. they are all unassigned!). This is a little scary as the data disks are obviously full of data! I don't want to reassign them and they get instantly formatted and the data removed. Can someone advise me of exactly what I should do to recreate the initial three disk array without losing all the data? Thanks in advance.

Yeah, the GUI was the big seller for me after the hassle of the TViX. I just wanted a streamer that worked out of the box, and looked good with it! All the main new players are now using the 8642/3 Sigma chipsets (HDI Dune, Popcorn Hour, TViX, Netgear etc). The danger with Cinavia, if there is one, is that Sigma include it in a firmware update, rather than the streamer vendor, who won't have a choice to exclude it at that point. But I really can't see this implemented, beyond playback of disc versions of copied movies, as it would essentially render the stream market useless for the current user base. Lets cross fingers though anyway, just in case!!

No never tried .mkv containers, don't see the point when I can rip an .iso image or the full BD structure. These are 1:1 anyway. As for Cinavia, it will never get implemented, it would reduce their sales to zero overnight, no company would do that!

Hi All, I appreciate this is quite an open ended question, but does anyone have any 'tips and tricks' (thinking in terms of hardware, software and network router or unRAID settings) to maximise network performance for both a) copying files to the unRAID array, and b) streaming files off the unRAID array via SMB or NFS?

I have just moved to a Netgear NeoTV 550 and I can honestly say it is excellent! After spending a couple of years with a TViX 6500a, where all the grahical interface had to be set-up manually, the interface on the Netgear is a revalation! I just ran MCM on all my rips, which also generates the necessary Netgear .TAG files, and all necessary cover art, fan art and film blurb appeared instantly on my Netgear with no messing about. The SMB connection isn't great as it only has a 10/100 ethernet port, but the NFS connection from my unRAID is rock solid with a constant 90Mbps - which must be the ports real world max. As a result I can stream .TS files, blu-ray .ISO's and full BD structures with no stuttering at all. Netgear support also looks promising as they have indicated they are ramping up the speed/frequency of firmware improvements. Its already a good box, and I think its set to get even better.