I would rate the solution’s stability a ten out of ten. I haven’t seen any issues with the solution’s stability where it crashed.

The stability of Oracle Exadata is okay, and on a scale of one to five, I'm giving it a four.

Exadata in a data warehouse is a nine out of ten regarding stability.

Oracle Exadata is the most stable system I have used. The performance is very good.

It's a pretty good solution, however, there may be more opportunity for more stability within the product. That said, the hardware and the database are some of the best Oracle has. It's pretty stable.

The product is very stable.

I give the stability a nine out of ten.

We have encountered several predictive disk failures, but we never lost data because the machine detected the issue before the actual failure and alerted us and Oracle to dispatch a spare through ASR. In the cloud, it is even more transparent.

We have not had any stability issues.

I give the stability of Oracle Exadata an eight out of ten.

There is redundancy built throughout the Exadata so even when we've experienced a disk failure, it's a very low stress situation. Early on we had some performance issues with DBFS and a node eviction problem. DBFS was resolved through a combination of settings changes and a quarterly patch. The node eviction was resolved through a one-off patch that eventually got rolled into a quarterly patch. I would chalk up these issues to being early adopters. We do have an occasional bug but I can't think of any that would be unique to Exadata with the database software. At least this provides some degree of comfort that Exadata is not the source of the issue.

The stability of Oracle Exadata is good.

The stability of Oracle Exadata is excellent. I don't hear complaints about its stability, so it's a nine out of ten.

It's stable and I have not experienced any issues.

There are a lot of performance-related issues that I have encountered with Oracle Exadata. You need someone with the expertise to make changes and recommend completing daily exercises for better performance.

Oracle Exadata is stable.

There's nothing bad to say about Exadata. It's stable, durable, and always up and running. My DBAs do online patches and online backup.

I think I would probably give it a capital S. People here peripherally hear about informational stuff that may be going on in the cluster, but as far as catastrophic events that may happen with the cluster, a lot of them in some way, shape or form are not far from self-healing. I think that's a huge advantage of an engineered system.

I would rate the tool's stability an eight out of ten. 

Exadata is pretty stable. There are built-in high-availability features. For example, every component – including the power supply, the fan, the CPU, and the memory – is redundant; you're buying a highly available system.

Exadata has been a very stable product once configured properly. We've had no issues with instability.

I give the stability of the solution an eight out of ten.

We have not encountered any stability issues; it is a stable box.

We have not had any major problems with stability.

We have no issues with its stability.

Yes; the initial versions had a lot of firmware issues that caused the cells to reboot, which caused the ASM software to rebalance the diskgroups. It mostly occurred in the X2 system. The X4 system has been quite stable. However, it's important to point out that Oracle generally releases firmware updates quite fast to remove any stability issues. We encountered them because we didn't apply these due to our internal reasons.

The solution is very stable. The only calls we receive are for the card itself. 

Exadata is stable.

Some time in Last junuary we had an issue with when we upgrade the database and the queries are started running very slow and we have changed the way of running statistics with Oracle recommendations and it started running fine.

No.

I only see stability issues with Exadata when I see too much consolidation, and/or the Exadata is not sized properly. Often the customer tries to throw everything and anything on the Exadata, by over-parallelizing OLTP/batch processes without any resource management across any databases.

Oracle Exadata is a nine on a scale of one to ten, stability-wise.

It is really super-stable.

There have been no major problems so far with stability.

No, very stable and reliable. On one quarter-rack we have 27 databases running, which astounds me every time I patch and do maintenance.

We don't deal with bugs or glitches and the product doesn't crash or freeze. The only real issues we come across are related to customization. It's quite stable. We haven't had problems.

It's definitely been stable for us; over a four-year period, we had zero outages. It's been rock solid.

It provides good stability capabilities.

This machine are equipped with new edge of fault tolerance technologies ensuring business continuity. All servers have dual power supply and the hard drives are reliable. Following the Oracle procedure to assembly this hardware in your datacenter with clean power is one thing that guarantees the stability. Of course, a support contract must be signed off between client and oracle to predict all possible disruption on time.

It is absolutely a stable solution. After we moved to Exadata, the stability has been good. Number one is, we used to go through Microsoft patching every month. With Exadata and Linux, we only have to do the firmware once per quarter. We try to coordinate that with quarterly Oracle patches. It isn’t really required; we only do it because we are behind two firewalls. We don't have to apply all the patches.

The stability has been very good. There are no bugs or glitches and it doesn't crash or freeze. It's reliable and the performance has been great.

It's stable. We haven't had any, what I would call Sev 1-type, issues that have caused us a problem with Exadata.

The stability of the solution is good.

I rate the stability of Oracle Exadata an eight out of ten.

The solution is very stable. The performance is good. there are no bugs or glitches. It doesn't crash or freeze. 

Stability-wise, I would rate this product close to ten out of ten.

We had minor stability issues.

It is brand new for us, and we are slowly getting other databases into it. So far, it's good, but we are not using 100% of them, so we still have to learn a lot.

It is stable like other Oracle products.  

Every component in the Oracle Exadata database is redundant. Hence, it provides HA for every layer.

There were no stability issues.

It has been pretty stable. We haven't seen many issues. Yes, we have hit some bugs, but otherwise it's pretty stable. It's a lot of mature boxes now. It's, again, an X5-2; it's mature enough.

There were no issues with stability.

It is hardware; things break. It does have some redundancy in it, you will see a performance hit at certain periods of time, but I do like the fact that it does have a lot of failover.

The Oracle Exadata environment design is very reliable. I have not had any issues with the solution on the cloud or on-premise.

No downtime.

We have not experienced many issues with stability, except with some cell node bugs.

While we have am MAA environment, it is absolutely robust. We've had no issues with any instability.

No issues encountered.

No. Their stability, in fact, is the main benefit from Exadata. When Exadata is in production, what clients tend to agree upon is that stability is of paramount importance. Several clients have had absolutely no downtime after deployment. Downtime nowadays for most enterprises, to put it simply, is money. Not to mention the image and the reputation. This is so hard to be included in pre-TCO studies as estimating such losses is rather difficult. The stability that Exadata brings solves this major issue entirely.

It's a stable solution but it comes with a price. You get performance and there is a cost associated with the performance. The Exadata tool is best when you can afford. You get best quality, in terms of the overall product features.

It is very stable. We were on X2; that was not as stable. There were some battery issues with some of the flash cache cards. We're on X5 and X4 now and that's much better; many more IOPS, so that's been great.

It is very stable; no stability issues.

The most critical issue was due to a bug with SDP (Sockets Direct Protocol): after connecting Exalogic and Exadata to the same Infiniband fabric and after enabling SDP listeners on Exadata compute nodes, we faced unexpected and random crashes of database hosts. Fortunately, we discovered that SDP caused the reboot, so we disabled it. We permanently resolved the issue with the latest firmware of Exadata, and after that we can take advantage in terms of performance, of SDP protocol.

After three to four months we may need to perform a rolling reboot of the DB/storage servers.

Stability is very good. Especially if you maintain it and always update, you won't have any problems with stability. Once Exadata is established, it's 100%.

My one customer was using the Exadata version from 2013 which was extremely outdated, and when they changed to the updated version of the main system application it was very healthy for the customer's company. 

Even with the old machines, we didn't have any constraints with the stability. There were some problems regarding the hardware that you must change because they are getting holes and they fail more frequently. When the life cycle goes, it's the end. But on the other side, this machine is very stable.

Since we have had these machines in production, we haven't had any downtime. Over the last two years, we had a lot of downtime with the old machines because they were very old and did not have enough performance to solve the demands of the database. But we don't have any constraints about the stability with these new machines.

Exadata is also a very stable environment. Their Smart Scan feature is great for every banking environment and financial institutions willing to implement it. 

We did not encounter any issues of stability on Exadata.

It is stable.

It seems very stable.

We have not had any down time. We've run into bugs, which we had not anticipated. When we upgraded software, depending on the version, if you're not with the current patch release, you have huge problems. You can't even run. We can't even run our application right now because we ran into a patch problem.

It's been great. The stability has really, really improved a lot over the last couple of years.

No problems, we have not had any unplanned down-time or performance issues.

Very stable. In the last five years there was was just one occasion of downtime because one cell went down and because we had low free disk space. It was a little problem but it was solved.

Very stable. No major issues. No downtime that was a result of bugs or some kind of defect in the platform.

There were no stability issues so far.

It is very stable; no major issues; no down time that was a result of bugs or some kind of defect in the platform.

Oracle Exadata is a stable solution.

There were no stability issues.

We only had a few stability issues with unexpected reboots.

Any mission can go wrong. Exadata is no exception to this. Of course, we had software bugs; it's Oracle. You can expect a lot of back and forth with the new versions of it. We had lots of stability issues in the beginning. One of the major issues was the Write Back Flash Cache. By default, the storage nodes come with write-through. That's not very good for your OLE DB because it's not going to hit your flash. It's going to directly hit your hard disk. That's not going to give you good performance. The implementation team did not do a good job knowing that it's an OLE DB. They did not enable the Write Back Flash Cache.

The first few databases that we migrated went really well; but when we migrated more databases, it started failing. We had a big problem. We had to enable the Write Back Flash Cache to restabilize it.

Of course, the storage nodes have multiple bugs in them. Constantly upgrading it is a pain because while we do have high availability, not all the patches are done in a rolling fashion. Some of them force you to do non-rolling patches, specifically the OJVM patches.

Those are some of the pain points that I can see with Exadata.

We have recently moved over to Exadata. Currently, we have not experienced any stability issues

We haven't really had any stability issues. The experiences we have had were when there have been hardware failures, but a Oracle took care of that pretty quickly. Our customer had databases and memory modules die and everything kept running. With the failures we've seen, it's stayed very consistent on the ones we've done.

This is a very stable solution, which we have hardly any problems with.

It is. Especially the new version, 3.4.

No

It is stable.

We've experienced no issues with performance.

When the workload increases on the cells, Cell Offloading may not happen.

In the earlier days of the V2 generation, and with customers pushing the then limited memory and cpu sizings available, stability was not at the levels encountered today.

With properly sized memory parameters and with the later generations of the Exadata software, stability is excellent.

It's very stable and very reliable.

It is stable. Sometimes we need to do patching and they take the system down. For example, we did patching a couple of weeks ago and they took the system down. They said it's the OS patching although they did not inform us beforehand. They just went ahead and did it.

That's one thing about Exadata: Sometimes when there are errors, they have do the patching. We cannot just do it ourselves.

I believe it's a stable solution because we haven't seen any issues, so far.

I did not encounter any stability issues.

It is a very stable solution.

It's stable.

There were stability issues during upgrades.

We have had no down time with it, but it can be difficult to patch and maintain because there are so many databases running on it.

The product is very, very stable and mature. It's a strong and successful product. 

It's pretty stable.

The solution is very stable and has good performance.

No, the whole stack is stable.

The solution is very stable.

There have been no issues with stability.

No issues encountered.

Initially, we did experience stability issue but thereafter, it was well-stabilized.

We have had issues with storage cells failing and rebooting, but with proper
configuration and redundancy decisions (upfront) we barely noticed the
event. Nevertheless, when we had component failures it was difficult to
diagnose and triage.

It is stable.

We've had no issues with stability.

No issues encountered.

It's stable.

On-premises Exadata is just as stable as the cloud version. It's a very stable platform.