Hi, It's firefly 0.80.9, so if the improvement is in Hammer I haven't seen it. Will check back when I upgrade the cluster. Thanks Eneko On 26/05/15 17:45, Robert LeBlanc wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > What version of Ceph are you using? I seem to remember an enhancement > of ceph-disk for Hammer that is more aggressive in reusing previous > partition. > - ---------------- > Robert LeBlanc > GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 > > > On Mon, May 25, 2015 at 4:22 AM, Eneko Lacunza wrote: >> Hi all, >> >> We have a firefly ceph cluster (using Promxox VE, but I don't think this is >> revelant), and found a OSD disk was having quite a high amount of errors as >> reported by SMART, and also quite high wait time as reported by munin, so we >> decided to replace it. >> >> What I have done is down/out the osd, then remove it (removing partitions). >> Replace the disk and create a new OSD, which was created with the same ID as >> the removed one (as I was hoping to not change CRUSH map). >> >> So everything has worked as expected, except one minor non-issue: >> - Original OSD journal was on a separate SSD disk, which had partitions #1 >> and #2 (journals of 2 OSDs). >> - Original journal partition (#1) was removed >> - A new partition has been created as #1, but has been assigned space after >> the last existing partition. So there is now hole of 5GB in the beginning of >> SSD disk. Promox is using ceph-disk prepare for this, I seen in the docs >> (http://ceph.com/docs/master/man/8/ceph-disk/) that ceph-disk prepare >> creates a new partition in the journal block device. >> >> What I'm afraid is that given enough OSD replacements, Proxmox wouldn't find >> free space for new journals in that SSD disk? Although there would be plenty >> in the beginning? >> >> Maybe the journal-partition creation can be improved so that it can detect >> free space also in the beginning and between existing partitions? >> >> Cheers >> Eneko >> >> -- >> Zuzendari Teknikoa / Director T?cnico >> Binovo IT Human Project, S.L. >> Telf. 943575997 >> 943493611 >> Astigarraga bidea 2, planta 6 dcha., ofi. 3-2; 20180 Oiartzun (Gipuzkoa) >> www.binovo.es >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users at lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -----BEGIN PGP SIGNATURE----- > Version: Mailvelope v0.13.1 > Comment: https://www.mailvelope.com > > wsFcBAEBCAAQBQJVZJUvCRDmVDuy+mK58QAAZ+4QAIr27ymAPpOZPr9JUVWZ > M8avNyddIiJpG/S2pP91UyxAzrgAy+mGbVQG0istpo98QKjT9UNxi/ySe64c > OxmIHb1tp40nyMtWFnv3W0Iw1iiScTxp2hWc2KSubbibFS6YY4ACRmTysBh+ > Curdo9TG9h6k4zSbQ1gAInuMCh6NIoxUMnNatkyju5UgxpGYKg9iN8Ddt+wX > H/YC3yKLnwuqIkYBWsMpQCNpry2RZYWTUF9tRiuGTJg5lnIuU572sXRCpXkZ > NGcVYjbOX2g16MMxohSfivxJ36PbCGsvPIde3WZz0RDP7xmeJnEanR3Zw9mC > Td80pyVkuu28lRJ/UYWwTRkd0PECNejYaGvBN6LjidbZE2nejTz31Pl0DGuZ > 9zlCyNFQDvUAcrKgIB0iE0qgNNzGgtmfgq+dvcu5+uFY0FLev8s7SZWCVcMf > UUwGe+UldfDo9w5g2vo89jMFvG+SIA7Pmk3ZsSvt1NzQCAYABRsb4MXUwNJ8 > k/S8ZgtNr1GcDeTSH+C+SqOdGS4i+AXVr3+r01Jw+9CbIWerI9aFZ8iBifUf > Amhz0DCqFe4m4ZHNp1HSaGaHtc1DZYiqaRggQ73FeIfGnyheNllJXx9hlJJF > ioLHk84XoiRn4KgdATF6XXIi1lk7zp0KyvyIxpGX958Q8qqPc5AbVDg3Q8OY > f0yb > =w3HG > -----END PGP SIGNATURE----- > > -- Zuzendari Teknikoa / Director T?cnico Binovo IT Human Project, S.L. Telf. 943575997 943493611 Astigarraga bidea 2, planta 6 dcha., ofi. 3-2; 20180 Oiartzun (Gipuzkoa) www.binovo.es
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