SSD users, what's your average monthly host writes?

[mikeymikec]

I'm just curious to find out what sort of variation in figures we might end up with and why.

I've had my Samsung 840 PRO 256GB SSD for a week or two over nine months, and the total host writes as reported by CrystalDiskInfo is 1351GB, which averages out at 150GB per month.

I use Win7, it's a boot SSD with my 'current' personal/work data on it, applications and games. Less important data, or data where there's no need for optimal performance for playing with, goes on the HDD.

 

[hawtdawg]

I've had my 850 pro for about exactly 4 months, and I'm currently sitting at 2.8TB. I've installed windows a couple of different times, and moved my game library over to it also. Plenty of other stuff too I'm sure, I haven't really kept track.

I'm not sure how to tell on my Vertex 4, it's definitely been abused over the course of a couple of years.

 

[coercitiv]

I've had my 840 Pro 256GB for over a year and have gone over 7TB total writes, which places me somewhere around 20GB per day. Most of my disk usage is due to my profession, I work a lot in Photoshop, sometimes with very large files.

Even if I were to continue this usage pattern, the SSD should have lasted more than 10 years (840 Pro endurance rating is 75TB afaik). However, one month ago it was joined by a 850 Pro, so all bets are off

 

[Charlie98]

According to CrystalDisk, my Plextor M5P has just short of 10TB writes, and I installed it in NOV of last year, so I average about .8TB/mo on my business machine.

..but! 172TB of reads!

 

[SSBrain]

With the Samsung 840 250GB I've previously owned for 14 months, my overall write average was about 800GB/month, with a lifetime write amplification of about 1.38x.

With the SanDisk Extreme II 480GB I currently have, my overall write average is about 950 GB/month, and the lifetime write amplification is about 2.32x so far, although during normal usage it's more like 3.0x-3.5x (large sequential writes appear to have a rather low WA on this drive and decrease significantly the lifetime WA calculation).


Here are a couple charts:

Samsung 840 250GB

SanDisk Extreme II 480GB

 

[HOSED]

250 GB per month according to crystal disk info

 

[dave_the_nerd]

~10GB a day when I'm actively using the computer. (If I'm on a woodworking streak and not gaming, or when it's hot in the summer and I use my laptop more, that's lower.)

 

[Elixer]

2306 hours with 820GB in writes.

 

[Cerb]

For my main rig, about 330GB, based on 10.8GB/day average, last time I checked, with about 2.8x for WA.

 

[.vodka]

Got a Samsung 830 64GB. I've had it for two years I think, 11071 hs, 6.56TB host writes which amount to... 13.12 GB/day. Magician says it's all good.

I've always used Magician's recommendation of having about 6GB as overprovisioning to keep it running smoothly, and considering its size it's been used as an OS drive usually with half of the remaining space free. From time to time I move a game there and keep a few GB free, but it's the exception.

Nice little drive, my first SSD. I bought it after seeing that legendary 830 256GB at XS' SSD endurance thread do over 6PB of writes.

 

[SSBrain]

I've always used Magician's recommendation of having about 6GB as overprovisioning to keep it running smoothly

It's not exactly your fault (rather, it's Magician's with its misleading wording), but that is kind of pointless if your system supports TRIM and regularly sends TRIM commands after deleting files, unless your workload is mainly composed of continuous, sustained writes, which doesn't appear to be your case at only 13 GB/day. When TRIM is used, the entire free space available on the partitions supported by your operating system works as overprovisioning space, for all intents and purposes .

 

[.vodka]

Then I'm grateful for the advice, this is what a forum is for. Thank you! I'll reclaim those 6GB right away, since I've always used this SSD with W7 and up on a 2500k/P67 rig. TRIM has always been doing its thing.

 

[xodusgenesis]

What program are you guys using to generate those graphs?

 

[SSBrain]

What program are you guys using to generate those graphs?

I'm simply using a spreadsheet made with LibreOffice Calc, manually sampling data of interest from SMART parameters using a monitoring application like CrystalDiskInfo.

 

[xodusgenesis]

Total host writes: 5.77 TB. This is in my business laptop that I've had for 6 months so averaging about 32.056 GB/day. Is there a way I can break it down by day in crystaldiskinfo? I only see total host writes and reads.

 

[SSBrain]

There's no straightforward way to retroactively show that unless you're constantly monitoring your writes with the program.
Try looking under Function -> Graph and enabling visualization for the "Host Writes" parameter. Chances are that if you haven't kept the program active at all times, the resulting curve will be stepped due to lack of data points.