OpenZFS: co je nového. Pavel Šnajdr LinuxDays 2017
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1 OpenZFS: co je nového Pavel Šnajdr LinuxDays 2017
2 OpenZFS: co je nového - stable release Encryption - draid - Sequential Scrubs and Resilvers - VDEV Removal - ZFS Channel Programs - Allocation Classes
3 OpenZFS ABD Slab memory fragmentation wasted memory
4 OpenZFS ABD Slab memory fragmentation wasted memory user data out of SLAB scatter/gather
5 ABD OpenZFS 0.7.0
6 Compressed ARC OpenZFS 0.7.0
7 OpenZFS Compressed ARC HW optimalizace (vektorizace raidz, fletcher4)
8 OpenZFS Compressed ARC HW optimalizace (vektorizace raidz, fletcher4) New checksums: SHA-512, Skein, or Edon-R
9 OpenZFS Compressed ARC HW optimalizace (vektorizace raidz, fletcher4) New checksums: SHA-512, Skein, or Edon-R dnode accounting
10 OpenZFS Compressed ARC HW optimalizace (vektorizace raidz, fletcher4) New checksums: SHA-512, Skein, or Edon-R dnode accounting Basic JBOD management
11 zfs send -c compressed send OpenZFS 0.7.0
12 OpenZFS zfs send -c compressed send zfs send -t <token> ssh... zfs recv -s pool/dset resumable send/recv
13 OpenZFS zfs send -c compressed send zfs send -t <token> ssh... zfs recv -s pool/dset resumable send/recv zpool iostat -w -l -r request histogram latency request size
14 OpenZFS zfs send -c compressed send zfs send -t <token> ssh... zfs recv -s pool/dset resumable send/recv zpool iostat -w -l -r request histogram latency request size zpool scrub -s scrub pause
15 OpenZFS Encryption Teď: Nad/pod ZFS (dmcrypt/ecryptfs)
16 OpenZFS Encryption Teď: Nad/pod ZFS (dmcrypt/ecryptfs) Native ZFS Encryption? - výkon - čistější implementace - snadnější správa - zálohy nepotřebují klíče
17 OpenZFS Encryption Teď: Nad/pod ZFS (dmcrypt/ecryptfs) Native ZFS Encryption? - výkon - čistější implementace - snadnější správa - zálohy nepotřebují klíče block ZFS stack
18 OpenZFS Encryption zfs get set encryption=off
19 OpenZFS Encryption zfs get set encryption=off \ aes-128-ccm \ aes-192-ccm \ aes-256-ccm \ aes-128-gcm \ aes-192-gcm \ aes-256-gcm
20 OpenZFS Encryption zfs get set encryption=off \ aes-128-ccm \ aes-192-ccm \ aes-256-ccm on \ aes-128-gcm \ aes-192-gcm \ aes-256-gcm
21 OpenZFS Encryption zfs get set encryption=off \ aes-128-ccm \ aes-192-ccm \ aes-256-ccm on \ aes-128-gcm \ aes-192-gcm \ aes-256-gcm keyformat=raw hex passphrase pbkdf2iters= (> 100k)
22 OpenZFS Encryption zfs get set encryption=off \ aes-128-ccm \ aes-192-ccm \ aes-256-ccm on \ aes-128-gcm \ aes-192-gcm \ aes-256-gcm keyformat=raw hex passphrase pbkdf2iters= (> 100k) keylocation=prompt file://
23 OpenZFS Encryption zfs get keystatus zfs load-key [-nr] [-L keylocation] -a filesystem zfs unload-key [-r] -a filesystem zfs change-key -i [-l] [-o options] filesystem options: keyformat, keylocation, pbkdf2iters
24 OpenZFS Encryption
25 OpenZFS Encryption
26 OpenZFS Encryption Problems copies=2 dedup leaks, limited to same key CRIME compression=off
27 OpenZFS draid
28 Traditional RAIDZ OpenZFS draid
29 OpenZFS draid Traditional RAIDZ Declustered RAID
30 OpenZFS draid Traditional RAIDZ Declustered RAID
31 OpenZFS Sequential Resilver
32 OpenZFS Sequential Resilver
33 OpenZFS Sequential Resilver
34 OpenZFS Sequential Resilver
35 OpenZFS Sequential Resilver
36 OpenZFS Sequential Resilver
37 Device evacuation/removal zpool remove disk
38 Device evacuation/removal zpool remove disk virtual VDEV + indirection table zfs remap
39 Device evacuation/removal zpool remove disk virtual VDEV + indirection table zfs remap
40 OpenZFS Channel Programs Lua 5.2 zfs program [-t timeout] [-m memlimit] pool script
41 OpenZFS Channel Programs Lua 5.2 zfs program [-t timeout] [-m memlimit] pool script
42 OpenZFS Channel Programs Lua 5.2 zfs program [-t timeout] [-m memlimit] pool script Open Context Channel Programs
43 Metadata Allocation Classes $ zpool list -o name,segregate_log,segregate_special NAME SEGREGATE_LOG SEGREGATE_SPECIAL demo off on spill-test off off [root@ssu1_oss2]# zpool list -C ssu_1ost1 NAME SIZE ALLOC FREE CAPACITY ssu_1ost1 72.7T 56.0T 16.8T 77.0% draid T 56.0T 16.8T 77.0% normal 58.2T 55.8T 2.48T 95.8% special 2.25T 217G 2.04T 9.43% unassigned 12.2T T -
44 OpenZFS Developer Summit , San Francisco A proposal for 1,000x better dedup performance
45 QA?
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