Almost every action you take and even routine log file updates trigger these updates so they are very important for performance. These are small writes throughout a disk and consist of about 25% of all hard drive activity on a computer. They’re very good at this and some cards have excellent throughput fast enough to even record 4K video.īut one thing they are not good at is 4k random writes and rewrites. They are designed for devices such as cameras and smart phones that need to write and reliably store data. MicroSD cards were not designed to serve as living storage for operating systems.
#Best format for usb flash drive connected to raspberry pi upgrade
With 10x the performance of MicroSD cards they are now a no-brainer upgrade for servers or IO intensive Raspberry Pi projects.
Thanks to technologies such as 3D NAND flash solid state drives for consumers have now become cheaper than mid-high range MicroSD cards. To re-connect it, such that it appears now in the mount table.That’s right. Next, I formatted the partition: $ sudo mkfs.ext4 /dev/sda1 Calling ioctl() to re-read partition table. Selected partition 1 Partition 1 has been deleted. To create the partition I used fdisk by invoking sudo fdisk /dev/sda the interactive session is easy to follow : Command (m for help): d EXT4-fs (sda1): Remounting filesystem read-only EXT4-fs error (device sda1): _ext4_journal_start_sb:62: Detected aborted journal EXT4-fs warning (device sda1): _ext4_read_dirblock:908: error reading directory block (ino 2, block 0) JBD2: Error -5 detected when updating journal superblock for sda1-8. lost page write due to I/O error on sda1 Buffer I/O error on device sda1, logical block 121667584 sd 12:0:0:0: Assuming drive cache: write through scsi 12:0:0:0: Direct-Access Generic External 2.10 PQ: 0 ANSI: 4 usb-storage 1-1.2:1.0: USB Mass Storage device detected usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Here is the output from dmesg usb 1-1.2: New USB device found, idVendor=13fd, idProduct=1340 My disk is now moved to sdb1 and if I try to mount sdb1 the same errors happen and the disk reappear under sda1. The other thing that happens in that if I do a fdisk -l I will get this now: Device Boot Start End Blocks Id System If I do a ls /mnt/external1 I get the following error: ls: reading directory /mnt/external1: Input/output error then I mount the drive by mount /dev/sda1 /mnt/external1Īnd this takes a little while but it returns with no error. dev/sda1 2 1953525167 976762583 83 LinuxĪnd this runs and does what it does without any erros. This is what I do: fdisk -lĪnd the result is Device Boot Start End Blocks Id System
The USB drive works fine if it is formatted in FAT but if I format the drive in ext4 the drive does not mount correctly and it gives me all sorts of error. I have a Raspberry PI to which an external 1T hard drive is attached by USB.
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