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--- projects:mdadm [2017/01/23 13:03] – created siretart
+++ projects:mdadm [2017/01/23 13:08] (current) – siretart
@@ Line 1: / Line 1: @@
+swap partition may come up read-only:
+What device is /dev/sda?
+<code>
+root@vamos2:~# smartctl -i /dev/sda
+smartctl 6.4 2014-10-07 r4002 [x86_64-linux-3.16.0-4-amd64] (local build)
+Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org
+=== START OF INFORMATION SECTION ===
+Model Family:     Western Digital Red (AF)
+Device Model:     WDC WD20EFRX-683UZNO
+Serial Number:    WD-DEADBEEF
+LU WWN Device Id: 5 0014ee 2b73f71d9
+Firmware Version: 82.00A82
+User Capacity:    2,000,398,934,016 bytes [2.00 TB]
+Sector Sizes:     512 bytes logical, 4096 bytes physical
+Rotation Rate:    5400 rpm
+Device is:        In smartctl database [for details use: -P show]
+ATA Version is:   ACS-2 (minor revision not indicated)
+SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
+Local Time is:    Mon Jan 23 14:06:15 2017 CET
+SMART support is: Available - device has SMART capability.
+SMART support is: Enabled
+</code>
+<code>
+md1 : active (auto-read-only) raid1 sda3[3] sdb3[4](W) sdc3[2]
+      7811464 blocks super 1.2 [3/3] [UUU]
+      bitmap: 0/1 pages [0KB], 65536KB chunk
+</code>
+This is not a problem, and can be fixed with ''mdadm /dev/md1 --readwrite''
 Array rebuilding:
@@ Line 19: / Line 52: @@
 unused devices: <none>
 </code>
+The data array didn't come up. I started it with ''mdadm --assemble /dev/md2 /dev/sda4 /dev/sdc4''