Re: Is my data checksummed?
|[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]|
On 02/21/2010 09:41 PM, tytso@xxxxxxx wrote:
On Fri, Feb 19, 2010 at 08:15:30PM -0800, Reza Roboubi wrote:What checksumming is done for the actual data? I know that storage devices often do their own checksumming too, but how can I be sure my data is integrity checked every time I read it?If you use disks that support the Data Integrity Field (DIF) extension, Linux will use it to provide end-to-end data checksum support. Otherwise, there are checksums on the disk and between disk controller and the CPU, but those are obviously not end-to-end checksums.
Just to be clear, even with a storage path that supports DIF/DIX, we don't currently do anything for applications on top of file systems. The primary application to target storage path is covered mainly for raw devices.
Adding data-level checksums is not something that we are planning on adding to the ext2/3/4 file systems. BTRFS is the only file system that has data-level checksums, but it's not yet production ready. Best regards, - Ted _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
_______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
[Linux RAID] [Kernel List] [Red Hat Install] [Video 4 Linux] [Postgresql] [Fedora] [Fedora Legacy] [Gimp] [Yosemite News] [Linux Software]