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Click the Log button on the top right of the unRAID GUI. Leave the Log window open until the server halts. Save a Diagnostics file after opening the Log window. Attach both the diagnostics file and the entire contents of the Log window.

See here: 8.5 Obtaining a SMART report

ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 187 Reported_Uncorrect 0x0032 078 078 000 Old_age Always - 22 The current VALUE is 78. As long as the value remains above the TRESHold of 0 the drive is OK.

Tools->Diagnostics. Post file.

10B8B BadCRC Bad or loose SATA cable or dirty or bad SATA port.

Do not reboot. Enter "diagnostics" on the command line. A file will be created on the flash.

http://lime-technology.com/wiki/index.php/Troubleshooting#What_do_I_do_if_I_get_a_red_ball_next_to_a_hard_disk.3F

A drive has failed and must be replaced: Device Model: HGST HDS724040ALE640 Serial Number: PK1311PBGJKHRX LU WWN Device Id: 5 000cca 23dc787a8 Firmware Version: MJAOA580 User Capacity: 4,000,787,030,016 bytes [4.00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 7200 rpm Device is: Not in smartctl database [for details use: -P showall] ATA Version is: ATA8-ACS T13/1699-D revision 4 SATA Version is: SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s) Local Time is: Sat Aug 1 17:51:19 2015 AEST SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: FAILED! Drive failure expected in less than 24 hours. SAVE ALL DATA. See vendor-specific Attribute list for failed Attributes. What dies unRAID Main show for this drive? This drive should still be under warranty.

See here: http://lime-technology.com/wiki/index.php/Troubleshooting#Resolving_a_Pending_Sector

It means Parity has not been checked. The status is saved to the flash drive and is retained across reboots.

Is there more than one router? The router is between the Internet and your server. Any traffic reaching the server from the Internet is passing through the router. The is no way the server is allowing Internet sourced traffic on your LAN. The router is allowing hackers to access your unsecured server. Reset the router to it's default setting using the hardware reset and then change the passwords.

See Check Disk Filesystems in my sig.

Run checkdisk on the flash in a Mac or PC

Tools->Diagnostics. Attach file.

Are all lan hosts operating with the same MTU? The IETF specifies that all subnet hosts use the same MTU. The behavior when LAN host use different MTU sizes is undefined.

Turn off User shares and try again. Or reboot in maintenance mode and try again.

Attach a new diagnostics file.

Run memtest overnight.

Are you certain that the disks are RFS formatted? The current default is XFS.

If the disks are set to spin down the test will be aborted.

I get this: root@rack:~# /usr/sbin/update-smart-drivedb /usr/sbin/update-smart-drivedb: download from trunk failed (HTTP error) Is it just me?

See here: http://lime-technology.com/forum/index.php?topic=39125.0 Do any of the issues discussed fit?

Tools->Diagnostics. Post file.

Tools->Diagnostics. Attach file.

Use the Plugins page to update to 6.0.1.