Date: Tue, 6 Apr 2021 05:41:09 +0200 (CEST) From: sesquivels@keemail.me To: freebsd-questions@freebsd.org Subject: advise or best practices with ZFS snapshot Message-ID: <MX_GFO7--B-2@keemail.me>
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Hello team, tank you for your time. I was building ZFS pool geom disk list Geom name: nvd0 Providers: 1. Name: nvd0 Mediasize: 512110190592 (477G) Sectorsize: 512 Mode: r2w2e4 descr: ADATA SX8100NP lunid: 00000000010000004ce00018dd8c9084 ident: 2K26291JGN17 rotationrate: 0 fwsectors: 0 fwheads: 0 Geom name: ada2 Providers: 1. Name: ada2 Mediasize: 1000204886016 (932G) Sectorsize: 512 Stripesize: 4096 Stripeoffset: 0 Mode: r1w1e1 descr: ST1000LM035-1RK172 lunid: 5000c500a7f6b348 ident: WDE31N7X rotationrate: 5400 fwsectors: 63 fwheads: 16 Geom name: ada3 Providers: 1. Name: ada3 Mediasize: 1000204886016 (932G) Sectorsize: 512 Stripesize: 4096 Stripeoffset: 0 Mode: r1w1e1 descr: TOSHIBA MQ04ABF100 lunid: 500003998238047c ident: 9915PKVBT rotationrate: 5400 fwsectors: 63 fwheads: 16 Geom name: ada4 Providers: 1. Name: ada4 Mediasize: 1000204886016 (932G) Sectorsize: 512 Stripesize: 4096 Stripeoffset: 0 Mode: r1w1e2 descr: ST1000LM049-2GH172 lunid: 5000c500b9fa0d1f ident: WGS1DNPB rotationrate: 7200 fwsectors: 63 fwheads: 16 Geom name: ada5 Providers: 1. Name: ada5 Mediasize: 1000204886016 (932G) Sectorsize: 512 Stripesize: 4096 Stripeoffset: 0 Mode: r1w1e2 descr: ST1000LM035-1RK172 lunid: 5000c500b40a20b4 ident: ZDEEM2PD rotationrate: 5400 fwsectors: 63 fwheads: 16 Geom name: ada6 Providers: 1. Name: ada6 Mediasize: 1000204886016 (932G) Sectorsize: 512 Stripesize: 4096 Stripeoffset: 0 Mode: r1w1e2 descr: TOSHIBA MQ04ABF100 lunid: 50000399eb100983 ident: 30HOP52LT rotationrate: 5400 fwsectors: 63 fwheads: 16 Geom name: ada7 Providers: 1. Name: ada7 Mediasize: 1000204886016 (932G) Sectorsize: 512 Stripesize: 4096 Stripeoffset: 0 Mode: r1w1e2 descr: ST1000LM035-1RK172 lunid: 5000c500b3e1e35e ident: ZDEEF3X9 rotationrate: 5400 fwsectors: 63 fwheads: 16 Geom name: ada8 Providers: 1. Name: ada8 Mediasize: 1000204886016 (932G) Sectorsize: 512 Stripesize: 4096 Stripeoffset: 0 Mode: r1w1e1 descr: WDC WD10SPZX-22Z10T1 lunid: 50014ee26897b98e ident: WD-WXB2AA00UENK rotationrate: 5400 fwsectors: 63 fwheads: 16 Geom name: ada0 Providers: 1. Name: ada0 Mediasize: 1000204886016 (932G) Sectorsize: 512 Stripesize: 4096 Stripeoffset: 0 Mode: r1w1e1 descr: TOSHIBA MQ04ABF100 lunid: 5000039a6b124e9a ident: Y0PPP0UWT rotationrate: 5400 fwsectors: 63 fwheads: 16 Geom name: ada1 Providers: 1. Name: ada1 Mediasize: 128035676160 (119G) Sectorsize: 512 Mode: r1w1e2 descr: MTFDDAK128MAM-1J1 lunid: 500a0751039d7440 ident: 1405039D7440 rotationrate: 0 fwsectors: 63 fwheads: 16 ------------------------------------------------ zpool status pool: zroot state: ONLINE scan: scrub repaired 0 in 0 days 01:43:28 with 0 errors on Thu Mar 18 01:57:21 2021 config: NAME STATE READ WRITE CKSUM zroot ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 ada4p3 ONLINE 0 0 0 ada5p3 ONLINE 0 0 0 ada6p3 ONLINE 0 0 0 ada7p3 ONLINE 0 0 0 raidz1-2 ONLINE 0 0 0 ada0 ONLINE 0 0 0 ada2 ONLINE 0 0 0 ada3 ONLINE 0 0 0 ada8 ONLINE 0 0 0 logs nvd0p2 ONLINE 0 0 0 cache nvd0p1 ONLINE 0 0 0 errors: No known data errors ----------------------------------------------------- I found some information at manpages for ZFS and, https://docs.oracle.com/cd/E18752_01/html/819-5461/gbchx.html https://docs.oracle.com/cd/E19253-01/819-5461/gbiqe/index.html And these are my questions: About zfs administration, and snapshots, where can I found more information? I did this snapshot zfs list -t snapshot NAME USED AVAIL REFER MOUNTPOINT zroot/Dom@03252021 32.6G - 353G - And interested on: Doing a zfs send to file as this, may I delete snapshjot from my zpool and then restore it using zfs receiver? zfs send zroot/Dom@03252021 | gzip > /mnt/bkp/march2021.gz I will be appreciate any advise, Serguei Esquivelhome | help
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