What storage and network devices will ESXi 4.The below table lists the devices that ESXi 4.Also included is the module that.The Computer Paper BC Edition by The Computer Paper.The Computer Paper BC Edition Published on Nov 2.Converting a Power.Edge SCSI backplane to support SATAThis post describes how to build a 8 drive storage server for under a hundred bucks drives not included.Last summer I bought a Dell Power.Edge 2. 80. 0, which I converted to use silent fans and SATA drives instead of SCSI drives.See the project page for this server for more information on how to hack the BMCs firmware in order to swap the fans agains silent ones.DE-UN939_wm.jpg]];var lpix_1=pix_1.length;var p1_0= [[1024' alt='Dell Perc 5I Raid Controller Driver' title='Dell Perc 5I Raid Controller Driver' />This post is the writeup of the conversion of the servers backplane from SCSI to SATA.My main reason for this conversion was money servers that offer a lot of swappable SATA drive slots are quite expensive.SCSI based servers, on the other hand, are quite cheap nobody uses plain SCSI anymore I guess.After searching a bit on the internet, Ive bought a Dell Power.Edge 2. 80. 0 that supports 8 SCSI drive slots for 2.ITPartsHelp-Images/WX072-500x500.jpg' alt='Dell Perc 5I Raid Controller Driver' title='Dell Perc 5I Raid Controller Driver' />I gutted the SCSI backplane and replaced the connectors with SATA connectors.Adding in a 3. Ware 9.S 1. 2 PCI X card, Ive ended up with a raid system that supports 8 SATA drives.Cold swappable only, which is what I aimed for.This server is not a production server, obviously, but just our home storage.In the following, I illustrate the steps how I converted the Power.Edge 2. 80. 0 to SATA.Its quite easy to do, so I hope I can inspire others.Apropos others there is a similar project that was featured on Hackaday around the same time Ive started with my project.Assumptions you do know how to use a soldering iron and which end of a screwdriver is the frontyou have a Dell Power.Edge generation 8 or similar, this should also work with generation 7 and 9 servers as the 2.SATA hardware raid card I used a 3.Ware 9. 50. 0S 1.Required material 9.SATA connector I used Delock type 8.LEDsconnectors maching the pin headers of your raid controllerglue, solder, time.So, lets start Open up your server and remove the backplane.Obviously, you have to remove all drives before being able to detach the backplane.I say obviously after I ripped of the connector of my floppy drive by brute force I removed the harddrives but forgot completely about the other drives.Doh I first thought about replacing the whole backplane, but after I bought the server I realized that all the front panel buttons, the optical drive etc are connected to the backplane.The backplane is therefore essential to the server, and the server does not even boot without it.So we have to leave the backplane in, fair enough.The first step is to remove the old SCSI connectors from the backplane.Remove first the protective plasic shield from the backplane.Keep it, we will stick it back on later The SCSI connectors are 6.In the picture you can see the first connector removed I pulled of the plasic part with some heavy pliers and stripped the pins one by one with a cutter.Next, remove all connectors as shown in the picture.After removing the first ones by hand, I ended up using a Dremel to remove the pins.It does not have to be perfect, but pay attention to remove any short circuits.You do not want to disturb the underlying SCSI system that is still active in the server, or even worse short circuit the power planes Next, we are going to solder the harddisk access LEDs.This step is optional, but as everybody loves flashing LEDs this will give your project some street cred.No, seriously, the LEDs help you to see access on the harddisks and if your controller supports it to identify a specific diskcontroller port.The Power. Edge features 2 LEDs for each drive, of which we will use only one does not matter which one.First, identify the traces on the backside of the backlane for each of the LEDs.Mark them with a pen according to drive number and if its the anode and the cathode.Cut the traces leading to the controller of the backplane leaving enough copper for you to solder a cable on.In the picture you can see how I did this for one of the ports one cable connected to the anode of the LED, and the other to the resistor, which in turn is connected to the cathod of the LED.Dont forget to include the limiting resistor into the mix, because else you might burn your LEDs Here you can see how I connected all ports on one side of the backplane.Note that I soldered the cable on the back of the backplane is that the frontplane Remember to fix the cables in place with a little hot glue.No hacking project can call itself a proper hacking project without a little hot glue, right Next, we prepare the connectors to the raid controller.Most raid controllers support pin headers for connecting the drive LEDs.Youve checked that yours does support this before starting to solder the cables to the LEDs, right Along the same lines, youve made the cables long enough to go all the way to the raid controller, even when all the fans etc are in the system Ok, good. Call Gnuplot From C Windows System32 . Configure your connector according to your raid controllers pinout.In my case, the pinout was given in the manual of the raid controller heres the relevant page.Pay attention not to swap pins.Reattach the isolating protective plastic shield and put back the power cable.Your backplane should look like in the picture above.Note that Ive cut away the two bars at the bottom of the backplanes PCB at the bottom of the two big cutouts, which were closed before.This allows me to insert the backplane easier with all the cables in place, but it is not really required.If you do this on another type of system, make sure that there are no traces running in this part of the PCB.Now we start doing the actual conversion to SATA.Mount all drives in their drive cages and stick them in your server.With the backplane still unmounted, you should be able to see the back of the drives.Here, I plugged in the angled all in one SATA connectors I used Delock type 8.As the Power. Edge servers do not have many drive power connectors and we cannot reuse the power connectors of the backplane, we have to connect the power cables of the all in one connectors together.This also reduces the cable mess.In the picture you can see how I did it add the connectors one by one plug the all in one connector in the drive, cut away the power cable that is longer than the distance to the next drive, add the next connector and solder the two cables together.Repeat until you have the whole column completed.Its hard to explain but easy enough to do, so have a look at the pictures.This is how the end result should look like.Remember to properly protect all solder joints by shrink tubes or similar.Use zip ties to clean things up.In the end youll have a single power connector for each column of drives.Next, we need to attach the SATA connectors to the back plane.The idea is that the connectors stay on the backplane when you pull a drive out without this you would have to dismount the backplane each time you want to swap a drive.I thought about many different ways to do this, but in the end I chose to use a kind of construction glue to do it.There are for sure ways to do this in a cleaner way, but this serves the purpose and is quick and cheap.The glue should have the following attributes stick on plasticmust remain at least a bit flexiblemust be able to cover distances of a few millimetersmust not shrink upon drying will pull the connector backmust be viscose not too liquidApply the glue to the back of the SATA connectors as shown in the picture the white stuff.Be sure to clean the connectors and the backplane from any fat residues before doing so.Additionally, push your drives as far as possible to the front theres usually a little play in the cage mounting mechanism, and youll want it to be maxed out.Then, put the backplane in.Wait. This is how your server should now look at the interior.You can see the 8 SATA cables coming out of the cutouts at the bottom of the backplane, just along the two power connectors.Additionally, you can see the cables that will connect the drive LEDs to the RAID controller the two gray cables.After youve waited long enough see glue instructions, you can remove and re insert your drives to check if everything is in order.This is how your empty drive slots should look like.Plug the power connectors and connect the SATA and LED cables to the RAID controller.Fire up your machine and check the drive status, and the drive LEDs.Remember that your drives are only cold swappable, so you have to shut down your server before changing them.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |