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March 2nd, 2022 06:00
Accessing a Dell SCV2020 Without Username / Password
Hello everyone,
Im working at a company which purchased another company, who ultimately ended up acquiring some hardware from the international location.
Of these items, we received a Dell SCV2020.
I haven't really worked with anything like this before, but after doing some research through the forums here and it seems that it may be very difficult to be able to access the management interfaces using the Dell Storage Manager Client, without the username / password. I've tried the defaults and talking to previous employees in that company. They had a remote IT company manage all of their hardware, so nobody has any knowledge of the credentials....
After doing a bit of research i found some threads that mentioned using a unlock.py USB key to by pass the login... but this would require talking to Dell Tech support...
So i tried to follow that avenue and see if they could help me. Well the device is out of warranty and they wanted a $1000 service fee to trouble shoot it, or pay $1500 - $3000 to extend the warranty and receive more support. We dont want any of the data on the drives, we just want to integrate this into our current server setups and use them as additional storage.
So at this point I've been able to use wireshark to see what the IPs for the device is and have narrowed it down to two addresses...
192.168.50.99 (BMC) I can SSH into this, but dont have the credentials....
10.51.106.179 This is the same MAC as the 192.168.50.99, but all ports and connections here are blocked...
Any suggestions or help in this case? We just want to utilize this hardware, and at this point if we can access the management interface or anything to configure it, its basically useless to us, which is a bit disappointing.
Origin3k
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March 2nd, 2022 07:00
The official guide for unlocking is located here https://www.dell.com/community/s/vjauj58549/attachments/vjauj58549/EntryLevel-and-Midrange-CN/3527/1/690-051-001%20Tech%20Tip%20Recovering%20a%20Locked%20Administrator%20Account%20in%20SCOS%206%205.pdf
We have 4 dozen SC2020, 3020, 4020, 5020 and i have use the procedure a couple of times but i cant remember if its working on every model or how is it related to the SCOS version.
But..
The SC2020 have a BMC and MGMT on the same phys. network port this is whys you see one MAC and to IPs when sniffing. Dell suggest to reconfigure the BMC to a non routable network (169.254.xx.xx) because of issues. If you can reach the BMC question is there another default login or the original Admin needed. For sure you will the the oldest HTML/JAVA!!! you can imagine. I was one connected to it and found nothing usefull :). The later SC have a Dell iDRAC.
If i find my installation books i can post if there is a default user/pass for the BMC.
Regards,
Joerg
Neckbeard
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March 2nd, 2022 07:00
Hello Joerg,
How can I tell which is the leading controller?
When creating this unlock.phy, does the need to have the "<>" need to be there? Should I be using the DSM to login after insterting the USB, or should i SSH into the BCM, and try there?
Origin3k
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March 2nd, 2022 15:00
Its without the < >.
Iam not aware if there is a hint when watching the boot msg to verify which is the leading CM. If you login into SCOS its
Yes you can use DSM to log into the system. The serial parameter are 115200/8/1/n
Neckbeard
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March 3rd, 2022 08:00
When I run the DSM as admin, I still encounter a need "elevated privledges" issue when trying to "discover" the storage centers... in addition, i've tried to ping these, and get no response, as well as doing a port scan and finding that all ports are in an "ignored state" what would be the next step?
Neckbeard
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March 3rd, 2022 08:00
Or should I try to see if I can use the DSM to try to connect to 10.51.106.178 / 10.51.106.179? I also see these addresses sending arp requests from the same MAC as the BMC, I suppose these are the management interfaces as well?
Origin3k
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March 3rd, 2022 08:00
Yes, please try to connect with DSM to your MGMT IPs.
Keep in mind that Port 3033 needs to be specified. If you start DSM with Admin rights you can also try to discover a SC. But you should be placed within the 10.51.106.0 with DSM.
Regards,
Joerg
Neckbeard
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March 3rd, 2022 08:00
So I was able to login to the BMC, is there not much that can be done here? Wondering i can reset the device to factory defaults from here, is there anything to worry about here, or will t
Origin3k
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March 3rd, 2022 09:00
The discovering needed to find uninstalled SCs.
If you cant ping the MGMT IPs than the serial connection is needed.
Regards,
Joerg
Neckbeard
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March 3rd, 2022 09:00
There is not a serial port here, unless i'm terribly blind I havent seen it, how can access the serial then?
Origin3k
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March 3rd, 2022 10:00
Take a look for a 3.5mm jack in the upper right of the TOP Controller. The other end of the cable is a RS232. No fancy USB2Serial.
Regards,
Joerg
Origin3k
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March 3rd, 2022 11:00
"3.5MM Jack -> RS232 female -> Male -> USB work"
Yes!. Modern laptop doesnt have a RS232 any more and i always use my Serial2USB on the laptop side when installing a SC.
If this is a standalone or a SC2020 with a expansion unit? If its the later please take notice that both controllers needs to be cross cabled with the help of the 6Gbit SAS backend ports. This is different compared to the SC3020!
Regards,
Joerg
Neckbeard
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March 3rd, 2022 11:00
Well, after looking at the manual, I found out that there is indeed a serial port, and its actually a 3.5mm jack. I've never seen that before, I was looking for the traditional RS-232 port. I dont have one of these cables lying around, I'll have to either make one, or order one. Would a 3.5MM Jack -> RS232 female -> Male -> USB work?
Neckbeard
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March 4th, 2022 05:00
My mind is still blown that the 3.5mm jack is the serial port.... anyway, it has two controllers, and both are connected using the Sas Cables. I should be able to have an update on monday when I receive the cable adapter.
Neckbeard
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March 8th, 2022 05:00
Hey I just wanted to update the situation, with the usb unlock.phython and ordering the 3.5mm -> serial cable -> usb did the job. Thank you for the help!! Is there a list of command line commands that I can reference? I would ultimately like to clean this device up. I'm going to see if I can locate any resources online.
Origin3k
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March 8th, 2022 06:00
from both controller to verify if they are joined together and not both running as master. The command will also display the IP configuration of the CMs.
Regards,
Joerg