According to official spec, Arista 7050QX-32 has 4GB RAM and up to 4GB flash storage. In the market most of the switches have 2GB flash storage. Unfortunately the one I got has only 1GB flash storage. When I called Arista support, they told me I could not upgrade the storage module by myself and they don't have the module available in the market.
However when I was running diagnostic commands I found the flash storage is a STEC USB device. So I think probably I could replace the original 1GB USB flash with standard 4GB USB drive.
Thanks @Foray , he showed me the picture of the inside of the switch. In order to double confirm the size and connector type, I also opened chassis and found it's USB DOM w/ standard 9PIN connector.
Arista DCS-7050QX-32
So I ordered an 4GB USB DOM from local market.
![IMG_1252 (Custom).JPG IMG_1252 (Custom).JPG](https://forums.servethehome.com/data/attachments/7/7485-89be81af210d2fb8cfb0fb1de66f89b7.jpg)
Here is its spec.
![USB-DOM-SPEC2.png USB-DOM-SPEC2.png](https://forums.servethehome.com/data/attachments/7/7483-f4e673844c5682ae2b29e1bfee602d1d.jpg)
Swap the flash storage is pretty straightforward.
1. First, backup your EOS image, boot-config, startup-config and your configuration file.
2. Remove the upper cover. (You don't need to remove PSU.)
![IMG_1243 (Custom).JPG IMG_1243 (Custom).JPG](https://forums.servethehome.com/data/attachments/7/7486-1df970f65fbdbde21f7205f14cbd0089.jpg)
3. Swap the USB DOM.
![IMG_1255 (Custom).JPG IMG_1255 (Custom).JPG](https://forums.servethehome.com/data/attachments/7/7488-66e1e0da08b638bac396123360ea3dba.jpg)
4. Close the cover and power it on.
5. Follow the steps in the post Roll back SONiC to EOS on Arista 7050QX-32 and recover the EOS and config.
However when I was running diagnostic commands I found the flash storage is a STEC USB device. So I think probably I could replace the original 1GB USB flash with standard 4GB USB drive.
Thanks @Foray , he showed me the picture of the inside of the switch. In order to double confirm the size and connector type, I also opened chassis and found it's USB DOM w/ standard 9PIN connector.
Arista DCS-7050QX-32
So I ordered an 4GB USB DOM from local market.
![IMG_1251 (Custom).JPG IMG_1251 (Custom).JPG](https://forums.servethehome.com/data/attachments/7/7484-dd83b8bfb832bd84a054e22645f17a44.jpg)
![IMG_1252 (Custom).JPG IMG_1252 (Custom).JPG](https://forums.servethehome.com/data/attachments/7/7485-89be81af210d2fb8cfb0fb1de66f89b7.jpg)
Here is its spec.
![USB-DOM-SPEC1.png USB-DOM-SPEC1.png](https://forums.servethehome.com/data/attachments/7/7482-7dec7b70dfadf6f2d7cadc270514ca8c.jpg)
![USB-DOM-SPEC2.png USB-DOM-SPEC2.png](https://forums.servethehome.com/data/attachments/7/7483-f4e673844c5682ae2b29e1bfee602d1d.jpg)
Swap the flash storage is pretty straightforward.
1. First, backup your EOS image, boot-config, startup-config and your configuration file.
2. Remove the upper cover. (You don't need to remove PSU.)
![IMG_1243 (Custom).JPG IMG_1243 (Custom).JPG](https://forums.servethehome.com/data/attachments/7/7486-1df970f65fbdbde21f7205f14cbd0089.jpg)
3. Swap the USB DOM.
![IMG_1244 (Custom).JPG IMG_1244 (Custom).JPG](https://forums.servethehome.com/data/attachments/7/7487-f54551a76a4c8f040b8a759914461bd7.jpg)
![IMG_1255 (Custom).JPG IMG_1255 (Custom).JPG](https://forums.servethehome.com/data/attachments/7/7488-66e1e0da08b638bac396123360ea3dba.jpg)
4. Close the cover and power it on.
5. Follow the steps in the post Roll back SONiC to EOS on Arista 7050QX-32 and recover the EOS and config.