https://www.ebay.com/itm/163869535450
1TB, Dell rebrand, full PLP. Wow. Must resist a cache drive for Storage Spaces.
1TB, Dell rebrand, full PLP. Wow. Must resist a cache drive for Storage Spaces.
When used as a cache drive fronting a virtual drive with parity, it ONLY works when the drive supports PLP: Solid-state drives must provide power-loss protection.Is StorageSpace smart enough to take advantage of PLP in SSD? For this to work, software has to know how to safely transfer data from cache to disk and that's not straightforward.
Yeah, this wouldn’t change the capabilities of NVMe booting, which as you already noted is determined by the BIOS. Generally speaking, you need you need a hacked BIOS (Good luck) or a more recent motherboard than the v1/v2 Xeons. It doesn’t matter if NVMe is cabled (U.2) or slotted (M.2 or PCIe), booting is the same.Can you use this for booting with an adapter like this one from startech?
U.2 to PCIe Adapter for 2.5
According to startech this doesn't require any drivers, but I know nvme booting does require bios support in many cases.
It’s not fast enough for wire speed at 10gbps, yes. But if you have a gigabit network (Or multi-gigabit up to 5gbps), or otherwise need faster local access (VMs, etc) this is more than enough.Write speed is slow for this drive. Isn't that what you don't want for a cache drive?
Thank you for the clear and detailed reply!Yeah, this wouldn’t change the capabilities of NVMe booting, which as you already noted is determined by the BIOS. Generally speaking, you need you need a hacked BIOS (Good luck) or a more recent motherboard than the v1/v2 Xeons. It doesn’t matter if NVMe is cabled (U.2) or slotted (M.2 or PCIe), booting is the same.
Well crap, you got me there. Double the IOPS and double the sequential writes.I'm not sure why you'd go for these when the P4510 is only $10 more: Intel DC P4510 Series 1TB Internal 2.5" NVMe PCIe SSD SSDPE2KX010T8 | eBay
7X the write endurance and 3X the write IOPS.
Only downside is you don't get the caddie, which is only a problem if you want the caddie.
So I bought two of these and they showed up today.I'm not sure why you'd go for these when the P4510 is only $10 more: Intel DC P4510 Series 1TB Internal 2.5" NVMe PCIe SSD SSDPE2KX010T8 | eBay
7X the write endurance and 3X the write IOPS.
Only downside is you don't get the caddie, which is only a problem if you want the caddie.
durr@baknas:~$ sudo smartctl -a /dev/nvme0
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-72-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Number: INTEL SSDPE2KX010T8
Serial Number: {snip}
Firmware Version: VDV10131
PCI Vendor/Subsystem ID: 0x8086
IEEE OUI Identifier: 0x5cd2e4
Total NVM Capacity: 1,000,204,886,016 [1.00 TB]
Unallocated NVM Capacity: 0
Controller ID: 0
Number of Namespaces: 1
Namespace 1 Size/Capacity: 1,000,204,886,016 [1.00 TB]
Namespace 1 Formatted LBA Size: 512
Local Time is: Mon Dec 16 23:53:55 2019 PST
Firmware Updates (0x02): 1 Slot
Optional Admin Commands (0x000e): Format Frmw_DL NS_Mngmt
Optional NVM Commands (0x0006): Wr_Unc DS_Mngmt
Maximum Data Transfer Size: 32 Pages
Warning Comp. Temp. Threshold: 70 Celsius
Critical Comp. Temp. Threshold: 80 Celsius
Supported Power States
St Op Max Active Idle RL RT WL WT Ent_Lat Ex_Lat
0 + 25.00W - - 0 0 0 0 0 0
Supported LBA Sizes (NSID 0x1)
Id Fmt Data Metadt Rel_Perf
0 + 512 0 2
1 - 4096 0 0
=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
SMART/Health Information (NVMe Log 0x02, NSID 0xffffffff)
Critical Warning: 0x00
Temperature: 44 Celsius
Available Spare: 100%
Available Spare Threshold: 10%
Percentage Used: 0%
Data Units Read: 1,515,656 [776 GB]
Data Units Written: 2,097,129 [1.07 TB]
Host Read Commands: 183,668,231
Host Write Commands: 187,926,688
Controller Busy Time: 10
Power Cycles: 18
Power On Hours: 42
Unsafe Shutdowns: 15
Media and Data Integrity Errors: 0
Error Information Log Entries: 0
Warning Comp. Temperature Time: 0
Critical Comp. Temperature Time: 0
Error Information (NVMe Log 0x01, max 64 entries)
No Errors Logged
durr@baknas:~$ sudo smartctl -a /dev/nvme1
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-72-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Number: INTEL SSDPE2KX010T8
Serial Number: {snip}
Firmware Version: VDV10131
PCI Vendor/Subsystem ID: 0x8086
IEEE OUI Identifier: 0x5cd2e4
Total NVM Capacity: 1,000,204,886,016 [1.00 TB]
Unallocated NVM Capacity: 0
Controller ID: 0
Number of Namespaces: 1
Namespace 1 Size/Capacity: 1,000,204,886,016 [1.00 TB]
Namespace 1 Formatted LBA Size: 512
Local Time is: Mon Dec 16 23:54:07 2019 PST
Firmware Updates (0x02): 1 Slot
Optional Admin Commands (0x000e): Format Frmw_DL NS_Mngmt
Optional NVM Commands (0x0006): Wr_Unc DS_Mngmt
Maximum Data Transfer Size: 32 Pages
Warning Comp. Temp. Threshold: 70 Celsius
Critical Comp. Temp. Threshold: 80 Celsius
Supported Power States
St Op Max Active Idle RL RT WL WT Ent_Lat Ex_Lat
0 + 25.00W - - 0 0 0 0 0 0
Supported LBA Sizes (NSID 0x1)
Id Fmt Data Metadt Rel_Perf
0 + 512 0 2
1 - 4096 0 0
=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
SMART/Health Information (NVMe Log 0x02, NSID 0xffffffff)
Critical Warning: 0x00
Temperature: 43 Celsius
Available Spare: 100%
Available Spare Threshold: 10%
Percentage Used: 0%
Data Units Read: 1,488,085 [761 GB]
Data Units Written: 2,139,668 [1.09 TB]
Host Read Commands: 183,315,907
Host Write Commands: 188,138,288
Controller Busy Time: 11
Power Cycles: 18
Power On Hours: 42
Unsafe Shutdowns: 15
Media and Data Integrity Errors: 0
Error Information Log Entries: 0
Warning Comp. Temperature Time: 0
Critical Comp. Temperature Time: 0
Error Information (NVMe Log 0x01, max 64 entries)
No Errors Logged