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1
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2answers
69 views

Upgrading hardware for MySQL. If we get SSDs, are CPUs likely to become a bottleneck

We are upgrading hardware for a MySQL database server (DB is around 200GB). We're getting 4x Samsung 850 Pro SSDs and are planning to run them in a RAID10 configuration. Also, 128GB of RAM. The ...
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1answer
26 views

Postgresql two tablespaces one on SSD and one on SATA III HD

Continuing my previous question PostgreSQL maximize performance SSD the DBA SE community has given me efficient advice on optimal settings for PostgreSQL on SSD. The problem is that I will define two ...
2
votes
1answer
67 views

Upgrading to new cPanel Server with mySQL on SSD — What should I change in my.cnf?

I'm upgrading to a faster server with whm/cpanel and the mysql databases will be on a SSD. I've read a bit about not wanting any query cache and stuff like that, but as a novice, I've learned that ...
2
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1answer
64 views

Wordpress blog where pages are almost-always served from cache: SSD or more RAM?

I am working on the design of a Wordpress blog which when finished will almost-always serve pages from disk cache and this is because all posts will be published in batch and then cached, with at ...
2
votes
2answers
158 views

Where to place tempdb and logfiles

I have fallowing configuration for my SQL 2014 server: SSD RAID 1 - for data files SSD RAID 1 - for tempdb? logfiles? HDD (SAS 15K) RAID 1 - for tempdb? logfiles? I noticed that sql uses tempdb ...
2
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0answers
351 views

SQL Server 2012 Local SSD TempDB Slow

I have a production deployment using local SSDs for tempDB. I have 2 SSDs in a RAID1 configuration. I am seeing average reads of 1-2ms but the average writes are showing as 1377ms on all four of my ...
6
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2answers
436 views

Major Discrepancy Between SQLIO IOPS/Throughput Stats and DBCC CHECKDB Operations

I'm conducting time trials on a new SSD array running both SQLIO tests and a real-world workload of DB restores and DBCC CHECKDB calls. I'm seeing a major discrepancy between the IOPS and throughput ...
0
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1answer
122 views

Sybase9, not using full system capacity

The SSD I/O capacity is around 450MB. When I copy files from one folder to another I can see in the Windows Resource Monitor that the sum of read/write speed gets around 450MB. Why the same wont ...
1
vote
1answer
852 views

SQL Server Express 2008: Can I store database files (.mdf, .ldf) in directory other than the default DATA directory?

I have a SQL Server Express 2008 instance of which I am attaching databases from development systems quite often. Typically I transfer the .MDF and .LDF files to the instance's DATA folder and ...
8
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5answers
10k views

SSD vs HDD for databases

I am trying to purchase a new Server to run MySQL Server on. This new server will be a slave of my main machine. However, this server will be dedicated for reporting only "Lots of reads and complex ...
3
votes
2answers
1k views

MySQL on SSD - what are the disadvantages? [closed]

Recently, I heard that I should not host my MySQL database on an SSD drive because there is a big chance of disk failure and data lost. Given that 20% of all queries in my database are INSERTs and ...