Posted: Fri Dec 30, 2022 2:52 Post subject: I/O Error writing anything to Large USB HDD WRT3200AC
Hello everyone,
Just got DDWRT working on my WRT3200AC (DD-WRT v3.0-r44715 std (11/03/20))
I can successfully mount my 14tb drive but whenever I try to do any write activity i get an I/O error, even when doing something as small as creating a new folder. Everything seems to work fine with other sized hard drives. This did not happen on the original linksys firmware. I've searched for other people with this problem but can't really find any. Any idea how to fix it? I've attached some photos and the text from the auto mount. Let me know if there's anything else you need.
Code:
--- /dev/sda
Block device, size 12.73 TiB (14000519643136 bytes)
DOS/MBR partition map
Partition 1: 2.000 TiB (2199023255040 bytes, 4294967295 sectors from 1)
Type 0xEE (EFI GPT Protective)
GPT partition map, block size 512 bytes, 128 entries
Disk size 12.73 TiB (14000519643136 bytes, 27344764928 blocks of 512 bytes)
Disk GUID D7E89557-6E33-564D-924C-E1960B38A9E4
Partition 1: 128 MiB (134217728 bytes, 262144 blocks of 512 bytes from 34)
Type MS Reserved (GUID 16E3C9E3-5C0B-B84D-817D-F92DF00215AE)
Partition Name "Microsoft reserved partition"
Partition GUID C260A900-A1C6-874A-9736-8F3DC17CDE41
Blank disk/medium
Partition 2: 12.73 TiB (14000383328256 bytes, 27344498688 blocks of 512 bytes from 264192)
Type Basic Data (GUID A2A0D0EB-E5B9-3344-87C0-68B6B72699C7)
Partition Name "Basic data partition"
Partition GUID FD5FFAFD-CBF8-2642-8382-BDB6836CAE64
Windows BOOTMGR boot loader
NTFS file system
UUID 9CC4DC1DC4DBF78A
Volume size 12.73 TiB (14000383327744 bytes, 27344498687 sectors)
Partition 3: unused
/dev/sda not mounted Unsupported Filesystem
Posted: Fri Dec 30, 2022 3:48 Post subject: Fixed it
I managed to fix it myself by changing the filesystem to EXFAT. I tried other 14tb drives formated as NTFS and they also didnt work, but xfat works perfectly.
Agreed. EXT4 has worked great for me on a modest Seagate 4TB magnetic drive that will soon be replaced with an 8TB. I also added the UUID to the "Mount Partition to /jffs" field since I use the drive with miniDLNA as well. Haven't played with ZFS yet over DDWRT on my router so I can't speak from personal experience as to how that file system performs on the 3200ACM, but based on my limited reading sounds pretty powerful and useful for large nas volumes! _________________ WRT3200ACM 1st Gen
DD-WRT v3.0-r51440 std (1/19/23)
Upgraded from v3.0-r33986 (12/04/17)
Motorola MB8600
Comcast 1200/40
ExpressVPN OpenVPN Client Manual Config
NAS and miniDLNA: 8TB Seagate USB3
Reset after any large build jump this being over two years. If upgrading from webUI ignore the dropdown option.
After successful upgrade: webUI administration to factory defaults or nvram erase && reboot from Telnet as root.