Userpaul Posted January 12, 2011 Share Posted January 12, 2011 Hi I had a power cut yesterday and when the power was restored and I booted my server 5 hdd's will not mount according to the unRAID screen. I have connected a screen to my server and I can log in to a session, should I reboot? The unRAID screen has no info on the bottom except the refresh button and when i click it nothing happens. mymain shows that a parity check is running but no info is showing for the drives that are not mounted. I have attached a syslog syslog-2011-01-11.txt Link to comment
Joe L. Posted January 12, 2011 Share Posted January 12, 2011 The key lines are similar to these: an 11 20:59:46 Tower kernel: REISERFS (device md1): replayed 113 transactions in 206 seconds Jan 11 20:59:47 Tower kernel: REISERFS (device md1): Using r5 hash to sort names Jan 11 21:01:02 Tower kernel: REISERFS (device md6): replayed 179 transactions in 282 seconds Jan 11 21:01:03 Tower kernel: REISERFS (device md6): Using r5 hash to sort names Jan 11 21:01:47 Tower kernel: REISERFS (device md2): replayed 235 transactions in 327 seconds When you rebooted the file systems that were not clealy shut down will need to replay their respective journal entried before they are mounted. I've seen that take as long as 15 minutes here on one of my disks. During that time, the display will simply show "mounting" You just need to wait. The drives will eventually mount. Let the parity check continue. Joe L. Link to comment
SSD Posted January 12, 2011 Share Posted January 12, 2011 I believe the reason it takes so long to replay the transactions is because it is fighting with the parity check for I/O. Like Joe says, give it time to complete. BTW, a UPS should be considered required equipment for a serious array. Mine has jumped into action many times to provide power through short disruptions, and cleanly shut down the array during long ones. Just last week we had a series of on again off again power issues. When it all started I was doing an unusually large number of write operations to various disks in the array. Without the UPS I fear i might have seen drive corruption. But the clean shutdown worked perfectly and allowed me to resume once power was fully restored (without dealing with a lengthy parity check!) Link to comment
kizer Posted January 12, 2011 Share Posted January 12, 2011 Amen to UPS's. I think I paid $99 for mine, but the very week I bought it we had a wind storm and I checked my desktop PC it showed power loss 3 times in 30minutes. Of course both where on UPS's and they continued running, but for me $99 is cheap insurance. After your UPS purchase you can use unMENU to add apcupsd which will monitor your UPS and shutdown if/when needed. Link to comment
Joe L. Posted January 12, 2011 Share Posted January 12, 2011 After your UPS purchase you can use unMENU to add apcupsd which will monitor your UPS and shutdown if/when needed. If it is an APC brand, or a brand using their USB protocol "apcupsd" will work. It will not for other brands using their own protocol. Link to comment
kizer Posted January 12, 2011 Share Posted January 12, 2011 Thank you Joe L. for saying that. I meant to earlier and oddly enough I ........ well forgot to. Link to comment
Userpaul Posted January 12, 2011 Author Share Posted January 12, 2011 Thanks guys..sure enough the drives mounted .. eventually and a parity check was completed without any errors. I did buy a ups ..this one.. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=400090983013&ssPageName=STRK:MEWNX:IT Problem is it came without any disks or instructions on use or leads to connect to server and I would have to buy those items and they are not cheap..I have read a few posts here on problems with buying second hand ups from ebay..after I bought the box . I plan to resale this one and buy a brand new box in the next two weeks. Link to comment
Joe L. Posted January 13, 2011 Share Posted January 13, 2011 That is a very nice UPS. If it has new batteries, it should be good for many years of service. You will need the APC serial cable to connect it to the serial port on your server. It is a special pin-out, so a normal serial cable will not work. (They wanted you to buy the cable from APC) The pin-out is documented on the web, so if you have any soldering skills you can make the cable. Otherwise, you can do an e-bay search for "APC SERIAL CABLE" See here for the pinout: http://www.everythingtech.net/2009/04/apc-smartups-serial-cable-pinout One example is here: http://cgi.ebay.com/APC-940-0024C-UPS-6FT-SMART-SERIAL-SIGNALING-CABLE-NEW-/260689872289?pt=PCA_UPS&hash=item3cb253c5a1 I personally have two APC units similar to the one you pictured. One is a 1000Watt unit, the other a 1100watt unit. They power my home theater equipment rack and projector. You do not need any software disks to use any APC UPS with unRAID. All you need is the cable (and a serial port on the motherboard. Most still have one, even if only internally on a header, waiting for a cable.) Newer APC units use USB cables to connect to the server. Older ones used serial cables. Link to comment
Userpaul Posted January 13, 2011 Author Share Posted January 13, 2011 Joe L. I'm getting fed up of saying thank you to you But thanks for that info anyway I will look into those links..cheers Link to comment
Userpaul Posted January 13, 2011 Author Share Posted January 13, 2011 You do not need any software disks to use any APC UPS with unRAID. All you need is the cable (and a serial port on the motherboard. Most still have one, even if only internally on a header, waiting for a cable.) Newer APC units use USB cables to connect to the server. Older ones used serial cables. I do not think my mobo MSI P6N Diamond can use that connector? "MSI loses antique serial and parallel ports but gains external Serial ATA (eSATA), Firewire and digital optical audio connectors in this location, along with some added room for heatpipe cooling." Link to comment
Joe L. Posted January 13, 2011 Share Posted January 13, 2011 You do not need any software disks to use any APC UPS with unRAID. All you need is the cable (and a serial port on the motherboard. Most still have one, even if only internally on a header, waiting for a cable.) Newer APC units use USB cables to connect to the server. Older ones used serial cables. I do not think my mobo MSI P6N Diamond can use that connector? "MSI loses antique serial and parallel ports but gains external Serial ATA (eSATA), Firewire and digital optical audio connectors in this location, along with some added room for heatpipe cooling." acording to the MSI web-site, your MB has an internal serial port connector. Internal I/O Connectors - ATX 24-Pin power connector - 8-pin ATX 12V power connector - CPU / Systemx3 FAN connectors - 1 x MSI D-Bracket 2 Connector - Front panel audio connector - Front panel connector - IrDA infrared module header - 1 x IEEE1394 connector - 3 x USB 2.0 connector support additional 6 ports - 1 x Floppy disk drive connector - 7 x serial ATA connectors - 1 x serial port connector - SPDIF-out connector for HDMI - 1 x ATA133 connectors - Chassis intrusion switch connector - Clear CMOS button Link to comment
prostuff1 Posted January 13, 2011 Share Posted January 13, 2011 The gigabyte board I have is the same way. It has one internal serial connector and one internal parallel connector. I used this to connect the internal header out the back so I could hook in a laser printer. I have p910nd running on the server so that I can print to it from anywhere in the house. Link to comment
Userpaul Posted January 13, 2011 Author Share Posted January 13, 2011 There is some confusion on the internet regarding which connector i should get (if I can locate one in the uk) for the Serial Port Connector: JCOM1 The manual states This connector is a 16550A high speed communication port that sends/receives 16 bytes FIFOs. You can attach a serial device. PIN SIGNAL DESCRIPTION 1 DCD Data Carry Detect 2 SIN Serial In or Receive Data 3 SOUT Serial Out or Transmit Data 4 DTR Data Terminal Ready 5 GND Ground 6 DSR Data Set Ready 7 RTS Request To Send 8 CTS Clear To Send 9 RI Ring Indicate Here is one link that indicates the issues connecting to a ups http://forum-en.msi.com/index.php?topic=122394.0;prev_next=next So I will spend a few days confirming what's what here on my mobo. The trouble is most site don't say what the pins are on there connectors. Also I have never soldered anything before so soldering is not an option. When I google "16550a" I just get a load of nonsense Is this the correct cable? http://www.cablesnmor.com/db9-port-straight.aspx Edit 15:56 gmt Found this one but it is in Hong Kong http://cgi.ebay.co.uk/9-Pin-RS-232-Serial-Port-PCI-Adapter-Card-MSI-PC-MB-/170584224715?pt=UK_Computing_ComputerComponents_InterfaceCards&hash=item27b79cb3cb I cannot find anything in the UK so far Link to comment
Userpaul Posted January 13, 2011 Author Share Posted January 13, 2011 EDIT 18:14 Hi guys can you confirn that this on is okay for my mobo/. http://www.twenga.co.uk/prices-9-Pin-Serial-Male-to-10-Pin-IDC-Motherboard-Header-Slot-Plate-Adapter-STARTECH.COM-Serial-cable-541862-0 This DB9 Serial Slot Plate Bracket adds a DB9 serial port to the rear panel computer rear panel, connecting to the host computer motherboard using a mini style header connector (required by motherboards such as the Intel DG41). Thanks Link to comment
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