From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io0-f182.google.com ([209.85.223.182]:35572 "EHLO mail-io0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964835AbbHKNU2 (ORCPT ); Tue, 11 Aug 2015 09:20:28 -0400 Received: by iodt126 with SMTP id t126so10251998iod.2 for ; Tue, 11 Aug 2015 06:20:20 -0700 (PDT) Subject: Re: Usage of new added disk not updated while doing a balance To: Juan Orti Alcaine , Btrfs References: From: Austin S Hemmelgarn Message-ID: <55C9F68B.9070309@gmail.com> Date: Tue, 11 Aug 2015 09:20:11 -0400 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-512; boundary="------------ms070406030107090808070009" Sender: linux-btrfs-owner@vger.kernel.org List-ID: This is a cryptographically signed message in MIME format. --------------ms070406030107090808070009 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable On 2015-08-11 07:08, Juan Orti Alcaine wrote: > Hello, > > I have added a new disk to my filesystem and I'm doing a balance right > now, but I'm a bit worried that the disk usage does not get updated as > it should. I remember from earlier versions that you could see the > disk usage being balanced across all disks. > > These are the commands I've run: > # btrfs device add /dev/sdb2 /mnt/btrfs_raid1 > # btrfs fi balance /mnt/btrfs_raid1 > > I see the unallocated space of sdc2 and sdd2 increasing, but for sdb2 > (the new disk), it doesn't change. sdb2 doesn't even appear in the > btrfs usage command for data, metadata and system. > > Is this normal? It's very strange the disk not showing up in the usage = report. How much slack space was allocated by BTRFS before running the balance=20 (ie, how big a difference was there between the allocated and used=20 space), and did the balance run to completion? If you had a lot of=20 mostly empty chunks and stopped the balance part way through, then this=20 is what I would expect to happen (balance back-fills partial chunks=20 before it starts allocating new ones). If that is not the case however, then this is very much _not_ normal,=20 and is almost certainly a bug, in which case you should make sure any=20 important data on the filesystem is backed up before doing anything=20 further with it (including unmounting it or rebooting the system). --------------ms070406030107090808070009 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgMFADCABgkqhkiG9w0BBwEAAKCC Brgwgga0MIIEnKADAgECAgMQblUwDQYJKoZIhvcNAQENBQAweTEQMA4GA1UEChMHUm9vdCBD QTEeMBwGA1UECxMVaHR0cDovL3d3dy5jYWNlcnQub3JnMSIwIAYDVQQDExlDQSBDZXJ0IFNp Z25pbmcgQXV0aG9yaXR5MSEwHwYJKoZIhvcNAQkBFhJzdXBwb3J0QGNhY2VydC5vcmcwHhcN MTUwMzI1MTkzNDM4WhcNMTUwOTIxMTkzNDM4WjBjMRgwFgYDVQQDEw9DQWNlcnQgV29UIFVz ZXIxIzAhBgkqhkiG9w0BCQEWFGFoZmVycm9pbjdAZ21haWwuY29tMSIwIAYJKoZIhvcNAQkB FhNhaGVtbWVsZ0BvaGlvZ3QuY29tMIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA nQ/81tq0QBQi5w316VsVNfjg6kVVIMx760TuwA1MUaNQgQ3NyUl+UyFtjhpkNwwChjgAqfGd LIMTHAdObcwGfzO5uI2o1a8MHVQna8FRsU3QGouysIOGQlX8jFYXMKPEdnlt0GoQcd+BtESr pivbGWUEkPs1CwM6WOrs+09bAJP3qzKIr0VxervFrzrC5Dg9Rf18r9WXHElBuWHg4GYHNJ2V Ab8iKc10h44FnqxZK8RDN8ts/xX93i9bIBmHnFfyNRfiOUtNVeynJbf6kVtdHP+CRBkXCNRZ qyQT7gbTGD24P92PS2UTmDfplSBcWcTn65o3xWfesbf02jF6PL3BCrVnDRI4RgYxG3zFBJuG qvMoEODLhHKSXPAyQhwZINigZNdw5G1NqjXqUw+lIqdQvoPijK9J3eijiakh9u2bjWOMaleI SMRR6XsdM2O5qun1dqOrCgRkM0XSNtBQ2JjY7CycIx+qifJWsRaYWZz0aQU4ZrtAI7gVhO9h pyNaAGjvm7PdjEBiXq57e4QcgpwzvNlv8pG1c/hnt0msfDWNJtl3b6elhQ2Pz4w/QnWifZ8E BrFEmjeeJa2dqjE3giPVWrsH+lOvQQONsYJOuVb8b0zao4vrWeGmW2q2e3pdv0Axzm/60cJQ haZUv8+JdX9ZzqxOm5w5eUQSclt84u+D+hsCAwEAAaOCAVkwggFVMAwGA1UdEwEB/wQCMAAw VgYJYIZIAYb4QgENBEkWR1RvIGdldCB5b3VyIG93biBjZXJ0aWZpY2F0ZSBmb3IgRlJFRSBo ZWFkIG92ZXIgdG8gaHR0cDovL3d3dy5DQWNlcnQub3JnMA4GA1UdDwEB/wQEAwIDqDBABgNV HSUEOTA3BggrBgEFBQcDBAYIKwYBBQUHAwIGCisGAQQBgjcKAwQGCisGAQQBgjcKAwMGCWCG SAGG+EIEATAyBggrBgEFBQcBAQQmMCQwIgYIKwYBBQUHMAGGFmh0dHA6Ly9vY3NwLmNhY2Vy dC5vcmcwMQYDVR0fBCowKDAmoCSgIoYgaHR0cDovL2NybC5jYWNlcnQub3JnL3Jldm9rZS5j cmwwNAYDVR0RBC0wK4EUYWhmZXJyb2luN0BnbWFpbC5jb22BE2FoZW1tZWxnQG9oaW9ndC5j b20wDQYJKoZIhvcNAQENBQADggIBABr5e8W+NiTER+Q/7wiA2LxWN3UdhT3eZJjqqSlP370P KL5iWqeTfxQ67Ai/mHbJcT2PgAJ+/D2Ji+aRR03UWnU/vtOwzyDLUMstqnfl0Zs+sz/CJe7x nBA5jlpjC2DKuMVfbPze7eySaen7XSGFHKE1QoVIIpQ2kVjC4nbbJQnUbAVX1Iz29WxeVGt9 XYigz3tDPf3tglN+q23E7YjQl4abTIoM7i98yV1H9gfY8lFfKZ6jREB9+n6ie2EwS3Kat2mG tl2wBx4MfRnoSQSKsLKQ5oTwhWf0JqlFwpLfl374p0Njcykej9/jnWG8Ks1V/AXTHqI4eyIP Mf5yMZkPv7n7LS9WWKdG4Nd38iv4T2EiAaWsmgu+r81qL5CJu9AyA0SBS4ttKf6k3e63w2Mv N9R45vpQ3QhAhfWyFxFhZN95APe3YECDG3+XIRJpRYPEtHuIsOyzI70ajF93gg/BidvqKsmV MM2ccktDMfqwZXea6zey7F8Geu9R7BqjXmG2HlNuXu7e/xnHOgXf5D3wPmnRLlBhXL1Ch97a w2KjaupjpAHfFjv5kGnZXN87UvvlwzIZiKXwa3vTDwK+rrKn/sHPkfDZPSiyt/ZBIK6lX83P 34H/CzGg+Kx57rHYOIHGumIvpDa5vfWp8O0sGgawb1C2Aae4sTUVIWmIjVuGI062MYIE0TCC BM0CAQEwgYAweTEQMA4GA1UEChMHUm9vdCBDQTEeMBwGA1UECxMVaHR0cDovL3d3dy5jYWNl cnQub3JnMSIwIAYDVQQDExlDQSBDZXJ0IFNpZ25pbmcgQXV0aG9yaXR5MSEwHwYJKoZIhvcN AQkBFhJzdXBwb3J0QGNhY2VydC5vcmcCAxBuVTANBglghkgBZQMEAgMFAKCCAiEwGAYJKoZI hvcNAQkDMQsGCSqGSIb3DQEHATAcBgkqhkiG9w0BCQUxDxcNMTUwODExMTMyMDExWjBPBgkq hkiG9w0BCQQxQgRA4ZYIoiTzEbK1Ye9w0NVercITDZxIJ6yezKX0xA7QnWgKqfhf+5yUn3Qt 2JdyulQXUVfw+qU4ue7/VmqZJXzrvTBsBgkqhkiG9w0BCQ8xXzBdMAsGCWCGSAFlAwQBKjAL BglghkgBZQMEAQIwCgYIKoZIhvcNAwcwDgYIKoZIhvcNAwICAgCAMA0GCCqGSIb3DQMCAgFA MAcGBSsOAwIHMA0GCCqGSIb3DQMCAgEoMIGRBgkrBgEEAYI3EAQxgYMwgYAweTEQMA4GA1UE ChMHUm9vdCBDQTEeMBwGA1UECxMVaHR0cDovL3d3dy5jYWNlcnQub3JnMSIwIAYDVQQDExlD QSBDZXJ0IFNpZ25pbmcgQXV0aG9yaXR5MSEwHwYJKoZIhvcNAQkBFhJzdXBwb3J0QGNhY2Vy dC5vcmcCAxBuVTCBkwYLKoZIhvcNAQkQAgsxgYOggYAweTEQMA4GA1UEChMHUm9vdCBDQTEe MBwGA1UECxMVaHR0cDovL3d3dy5jYWNlcnQub3JnMSIwIAYDVQQDExlDQSBDZXJ0IFNpZ25p bmcgQXV0aG9yaXR5MSEwHwYJKoZIhvcNAQkBFhJzdXBwb3J0QGNhY2VydC5vcmcCAxBuVTAN BgkqhkiG9w0BAQEFAASCAgAUPkfVlXdd8iUhY1+pgzgW/572gg1cpKCFHWO4m7xFABO9e+i+ gNoirNUZF5iz0WNVe8jfb9a0iL6ZM/XjmvoiRNODD+yRJtRrATp1t/nv5TVlmKl7S+tNFgLn 5fc6St/BpgSbaFW1VlkJTndS/ldN6hm/phAhS/Bx2vXMr1uQqxTRD0Na12BAp0z2hfQ7NPCZ xr6lwWj4p+lcSCvqzaW4BWIlGRqsqr59dQgjMSVfixeLhPDy6+kc1RHLtPUC64Em52WeG7c1 dx0hLsXAbed6QYCBRjGJ7njcR1oghm6ZMFuj+7wMySh7e7DQsNtY1jqkfIPg4jzmHl7fyXt0 EVSD54e/YZPBcqqjUQlkyhOBY/4aVDerDmiqN9sf2r4z7yqbRWADyysTFkPuqEMsqk/0AvX6 Dmsuvy4kKFE0orJCSMLQ80AWBCKMirZXFtjAjqDved294+4BlI98n4mVixqVI1+YcWjjFYQk lOrJMr3W35xmlUYCh0QrBZg+CH2aLDBLToUXBlhp9fWqLKtiMiyjVr3TClCZkjo2RMviPS9+ uIedEPb3LigHa/Vknw1pDs2MoMAKRkNCGNLZJ/ndpaCBBFpHzkJym5p7HDoX3r/WKxNJUQc9 8Voo7kC8696w1pvuO7TsJfUSutP+iujq7QkQEfTct5BYS6DEK89Kz1MFwgAAAAAAAA== --------------ms070406030107090808070009--