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25 lines
1.1 KiB
Plaintext
25 lines
1.1 KiB
Plaintext
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These are the userspace tools required for bcache.
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Bcache is a patch for the Linux kernel to use SSDs to cache other block
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devices. For more information, see http://bcache.evilpiepirate.org.
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Documentation for the run time interface is included in the kernel tree, in
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Documentantion/bcache.txt.
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Included tools:
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make-bcache
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Formats a block device for use with bcache. A device can be formatted for use
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as a cache or as a backing device (requires yet to be implemented kernel
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support). The most important option is for specifying the bucket size.
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Allocation is done in terms of buckets, and cache hits are counted per bucket;
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thus a smaller bucket size will give better cache utilization, but poorer write
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performance. The bucket size is intended to be equal to the size of your SSD's
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erase blocks, which seems to be 128k-512k for most SSDs; feel free to
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experiment.
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probe-bcache
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Only necessary until support for the bcache superblock is included
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in blkid; in the meantime, provides just enough functionality for a udev script
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to create the /dev/disk/by-uuid symlink. The arguments it does support are the
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same as for blkid.
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